
MARC Usage in WorldCat
A summary of the use of MARC fields and subfields in the WorldCat database.
Select MARC Field
- 001: Control No.
- 003: Control No. Identifier
- 006: Additional Material Characteristics
- 007: Physical Characteristics
- 008: Material Characteristics
- 009: Physical Description Fixed-Field for Archival Collection (VM) [OBSOLETE, 1985]
- 010: LC Control No.
- 012: Terminal Display
- 013: Patent Control Information
- 015: National Bibliography No.
- 016: National Bibliography Agency Control No.
- 017: Copyright/Legal Deposit No.
- 018: Copyright Article-Fee Code
- 019: OCLC Control No. Cross-Reference
- 020: ISBN
- 022: ISSN
- 024: Other Standard Identifier
- 025: Overseas Acquisition No.
- 026: Fingerprint Identifier
- 027: STRN
- 028: Publisher or Distributor No.
- 029: Other System Control No.
- 030: CODEN Designation
- 031: Musical Incipits Information
- 032: Postal Registration No.
- 033: Date/Time/Place of an Event
- 034: Coded Cartographic Mathematical Data
- 035: System Control No.
- 036: Original Study No.
- 037: Source of Acquisition
- 040: Cataloging Source
- 041: Language Code
- 042: Authentication Code
- 043: Geographic Area Code
- 044: Country Code
- 045: Time Period
- 046: Special Coded Dates
- 047: Musical Composition Code
- 048: Number of Instruments/Voices Code
- 050: LC Call No.
- 051: LC Copy, Issue, Offprint Statement
- 052: Geographic Classification
- 055: Classification No.-Canada
- 060: NLM Call Number
- 061: NLM Copy Statement
- 066: Character Sets
- 070: NAL Call No.
- 071: NAL Copy Statemet
- 072: Subject Category Code
- 074: GPI Item No.
- 080: UDC No.
- 082: DDC No.
- 083: Additional DDC No
- 084: Other Classification No.
- 085: Synthesized Classication Number Components
- 086: GovDoc Classification No.
- 087: Report Number [OBSOLETE, 1997]
- 088: Report No.
- 090: Local LC-type Call No.
- 092: Local Dewey Call No.
- 096: Local NLM-type Call No.
- 100: Personal Name
- 110: Corporate Name
- 111: Meeting Name
- 130: Uniform Title
- 210: Abbreviated Title
- 211: Acronym or Shortened Title [OBSOLETE, 1993]
- 212: Variant Access Title [OBSOLETE, 1993]
- 214: Augmented Title [OBSOLETE, 1993]
- 222: Key Title
- 240: Uniform Title
- 242: Translation of Title by Cataloging Agency
- 243: Collective Uniform Title
- 245: Title Statement
- 246: Varying Form of Title
- 247: Former Title
- 250: Edition Statement
- 254: Musical Presentation Statement
- 255: Cartographic Mathematical Data
- 256: Computer File Characteristics
- 257: Country of Producing Entity
- 258: Philatelic Issue Data
- 260: Publication Distribution, Etc.
- 263: Projected Publication Data
- 264: Production, Publication, Distribution, Manufacture, and Copyright Notice
- 270: Address
- 300: Physical Description
- 303: Unit Count [OBSOLETE, 1983]
- 304: Linear Footage [OBSOLETE, 1983]
- 305: Physical Description for Sound Recordings [OBSOLETE, 1993]
- 306: Playing Time
- 307: Hours, Etc.
- 308: Physical Description for Films [OBSOLETE, 1990]
- 310: Current Publication Frequency
- 315: Frequency [OBSOLETE, 1993]
- 321: Former Publication Frequency
- 336: Content Type [NEW, 2009]
- 337: Media Type [NEW, 2009]
- 338: Carrier Type [NEW, 2009]
- 340: Physical Medium
- 342: Geospatial Reference Data
- 343: Planar Coordinate Data
- 344: Sound Characteristics [NEW, 2011]
- 345: Projection Characteristics of Moving Image [NEW, 2011]
- 346: Video Characteristics [NEW, 2011]
- 347: Digital File Characteristics [NEW, 2011]
- 351: Organization and Arrangement of Materials
- 352: Digital Graphic Representation
- 355: Security Classification Control
- 362: Dates of Publication and/or Sequential Designation
- 363: Normalized Data and Sequential Designation [NEW, 2007]
- 365: Trade Price [NEW, 2003]
- 366: Trade Availability Information [NEW, 2003]
- 370: Associated Place [NEW, 2014]
- 377: Associated Language [NEW, 2011]
- 380: Form of Work [NEW, 2010]
- 381: Other Distinguishing Characteristics of Work or Expression [NEW, 2010]
- 382: Medium of Peformance [NEW, 2010]
- 383: Numeric Designation of Musical Work [NEW, 2010]
- 384: Key [NEW, 2010]
- 385: Audience Characteristics [NEW, 2013]
- 386: Creator/Contributor Characteristics [NEW, 2013]
- 388: Time Period of Creation [New, 2014]
- 400: Series Statement/Added Entry - Personal Name [US ONLY, 1999]
- 410: Series Statement/Added Entry - Corporate Name [US ONLY, 1999]
- 440: Series Statement/Added Entry-Title [OBSOLETE, 2008]
- 490: Series Data
- 500: General Note
- 501: "With"
- 502: Dissertation
- 504: Bibliography, Etc.
- 505: Formatted Contents
- 506: Restrictions on Access
- 507: Note for Graphic Material
- 508: Creation/Production Credits
- 510: Citation/References
- 511: Participant/Performer
- 513: Type of Report/Period Covered
- 514: Data Quality
- 515: Numbering Peculiarities
- 516: Type of Computer File/Data
- 518: Date/Time and Place of Event
- 520: Summary, Etc.
- 521: Target Audience
- 522: Geographic Coverage
- 523: Time Period of Content Note [OBSOLETE, 1993]
- 524: Preferred Citation
- 525: Supplement
- 526: Study Program Information
- 530: Additional Physical Form Available
- 531: Eligibility, Fees, Procedures Note
- 533: Reproduction
- 534: Original Version
- 535: Location
- 536: Funding Information
- 537: Source of Data Note [OBSOLETE, 1993]
- 538: System Details
- 539: Data Elements of Reproduction
- 540: Terms Governing Use/Reproduction
- 541: Immediate Source of Acquisition
- 542: Information Relating to Copyright Status [NEW, 2008]
- 544: Location of Other Archival Materials
- 545: Biographical/Historical
- 546: Language
- 547: Former Title Complexity
- 550: Issuing Body
- 552: Entity/Attribution Information
- 555: Cumulative Index/Finding Aids
- 556: Information About Documentation
- 561: Ownership/Custodial History
- 562: Copy/Version Identification
- 563: Binding Information [NEW, 2002]
- 565: Case File Characteristics
- 567: Methodology
- 580: Linking Entry Complexity
- 581: Publications About Described Materials
- 582: Related Computer Files Note [OBSOLETE, 1993]
- 583: Action
- 584: Accumulation and Frequency of Use
- 585: Exhibitions
- 586: Awards
- 588: Source of Description [NEW, 2009]
- 590: Local Note
- 598: Local Note
- 600: Personal Name
- 610: Corporate Name
- 611: Meeting Name
- 630: Uniform Title
- 647: Subject Added Entry -- Named Event
- 648: Subject Added Entry -- Chronological Term [NEW, 2002]
- 650: Topical Term
- 651: Geographic Name
- 653: Index Term -- Uncontrolled
- 654: Faceted Topical Terms
- 655: Index Term -- Genre Form
- 656: Index Term -- Occupation
- 657: Index Term -- Function
- 658: Index Term -- Curriculum Objective
- 662: Subject Added Entry -- Hierarchical Place Name [NEW, 2005]
- 680: PRECIS Descriptor String [OBSOLETE, 1991]
- 695: Added Class Number
- 699: Lcoal Subject Added Entry -- Uniform Title
- 700: Personal Name
- 710: Corporate Name
- 711: Meeting Name
- 720: Uncontrolled Name
- 730: Uniform Title
- 740: Uncontrolled Related/Analytical Title
- 751: Added Entry -- Geographic Name [NEW, 2007]
- 752: Hierarchical Place Name
- 753: System Details
- 754: Taxonomic Identification
- 760: Main Series
- 762: Subseries
- 765: Original Language
- 767: Translation Entry [NEW, 2009]
- 770: Supplement/Special Issue
- 772: Supplement Parent
- 773: Host Item
- 774: Constituent Unit
- 775: Other Edition
- 776: Additional Physical Form
- 777: Issued With
- 780: Preceding
- 785: Succeeding
- 786: Data Source
- 787: Other Relationship Entry
- 800: Personal Name
- 810: Corporate Name
- 811: Meeting Name
- 830: Uniform Title
- 850: Holding Institution
- 851: Physical Location [OBSOLETE, 1993]
- 856: Electronic Location/Access
- 880: Alternate Graphic Representation
- 883: Machine-generated Metadata Provenance [NEW, 2012]
- 884: Description Conversion Information [NEW, 2015]
- 885: Matching Information
- 886: Foreign MARC Information
- 887: Non-MARC Information
- 891: Publication Pattern
- 902: Local Data Element
- 917: Local Field
- 936: OCLC/CONSER Miscellaneous Data
- 938: Vendor Specific Ordering Data
- 949: Local Processing Information
- 987: Local Romanization/Conversion History
050: LC Call No.
You may request a report on a particular subfield.
- TOTAL Number of Records with this field:
- 76,277,538 out of a total of 411,948,429 MARC records as of 1 Jan 2018
- Overall number of Holdings:
- 1,907,164,270
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 78,713,306 | 1,998,274,711 |
c | 9 | 20 |
b | 63,942,229 | 1,781,803,795 |
e | 10 | 512 |
f | 139 | 279 |
i | 3 | 63 |
h | 2 | 2 |
v | 6 | 25 |
p | 2 | 3 |
n | 4 | 40 |
0 | 2 | 8 |
3 | 31,510 | 47,939 |
r | 1 | 2 |
u | 158 | 1,417 |
6 | 2 | 21 |
y | 1 | 1 |
8 | 3 | 0 |
z | 1 | 2 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 70,405,592 out of a total of 386,221,072 MARC records as of 1 Jan 2017
- Overall number of Holdings:
- 1,827,006,681
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 72,214,667 | 1,914,429,548 |
c | 9 | 17 |
b | 59,300,952 | 1,729,860,294 |
e | 10 | 659 |
f | 103 | 232 |
i | 3 | 62 |
h | 3 | 7 |
p | 3 | 40 |
n | 4 | 39 |
0 | 2 | 8 |
3 | 31,315 | 46,451 |
r | 1 | 1 |
u | 158 | 1,554 |
v | 6 | 20 |
y | 1 | 1 |
z | 1 | 2 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 65,401,351 out of a total of 333,518,928 MARC records as of 1 Jan 2016
- Overall number of Holdings:
- 1,726,420,758
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 67,139,687 | 1,813,688,060 |
c | 11 | 19 |
b | 55,941,421 | 1,654,225,384 |
e | 10 | 42 |
d | 1 | 1 |
f | 103 | 231 |
i | 3 | 62 |
h | 3 | 7 |
p | 3 | 41 |
n | 4 | 39 |
0 | 2 | 8 |
3 | 31,284 | 44,820 |
r | 1 | 1 |
u | 160 | 1,610 |
v | 6 | 19 |
y | 1 | 1 |
z | 1 | 2 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 58,586,238 out of a total of 333,518,928 MARC records as of 1 Jan 2015
- Overall number of Holdings:
- 1,627,509,648
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 60,228,009 | 1,714,305,376 |
c | 14 | 131 |
b | 50,126,756 | 1,569,832,156 |
e | 9 | 35 |
d | 7 | 48 |
f | 102 | 255 |
i | 3 | 64 |
h | 3 | 7 |
p | 3 | 42 |
n | 4 | 39 |
0 | 2 | 8 |
3 | 31,180 | 41,989 |
r | 1 | 1 |
u | 162 | 1,643 |
v | 6 | 16 |
y | 1 | 1 |
z | 1 | 1 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 50,085,373 out of a total of 311,114,134 MARC records as of 1 Jan 2014
- Overall number of Holdings:
- 1,499,764,438
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 51,642,166 | 1,585,748,497 |
c | 16 | 176 |
b | 42,587,192 | 1,460,288,785 |
e | 9 | 27 |
d | 15 | 60 |
f | 96 | 191 |
i | 3 | 61 |
h | 3 | 7 |
p | 3 | 41 |
n | 4 | 38 |
0 | 2 | 9 |
3 | 31,228 | 38,470 |
r | 1 | 1 |
u | 161 | 1,675 |
t | 1 | 1 |
v | 6 | 14 |
y | 1 | 1 |
z | 1 | 1 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 47,989,378 out of a total of 289,294,984 MARC records as of 1 Jan 2013
- Overall number of Holdings:
- 1,408,979,904
Subfield | Number of Occurrences | Holdings |
---|---|---|
a | 49,546,407 | 1,494,735,158 |
c | 18 | 191 |
b | 41,832,586 | 1,379,931,837 |
e | 8 | 15 |
d | 17 | 64 |
f | 92 | 168 |
i | 3 | 59 |
h | 3 | 7 |
p | 3 | 42 |
n | 4 | 37 |
0 | 2 | 9 |
3 | 28,062 | 30,906 |
r | 1 | 1 |
u | 166 | 1,701 |
t | 2 | 2 |
v | 6 | 11 |
y | 1 | 1 |
z | 2 | 2 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.