MARC 21 Format for Authority Data: 053: LC Classification Number (Network Development and MARC Standards Office, Library of Congress)

Single LC classification number or a number span associated with a 1XX heading in an established heading record or a subdivision record. Source of the classification number is Library of Congress Classification and/or the LC Classification Additions and Changes that are maintained by the Library of Congress. The hyphen (-) between the two class numbers in a range of numbers may be generated based on the presence of both subfields $a and $b.

Indicators

First - Undefined: # - Undefined
Second - Source of classification number: 0 - Assigned by LC; 4 - Assigned by agency other than LC

Subfield Codes

$a - Classification number element-single number or beginning number of span (NR)

$b - Classification number element-ending number of span (NR)

$c - Explanatory term (NR)

$0 - Authority record control number or standard number (R): See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI (R): See description of this subfield in Appendix A: Control Subfields.

$5 - Institution to which field applies (R): See description of this subfield in Appendix A: Control Subfields.

$6 - Linkage (NR): See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number (R): See description of this subfield in Appendix A: Control Subfields.

Examples

053	#0$aPS3557.R48998
053	#0$aBX8627
053	#0$aP301$cLinguistics
053	#0$aE201$bE298
053	#0$aML1160$cHistory
053	#0$aMT728$cInstruction and study
053	#0$aBX850$bBX875$cDocuments
053	#4$aHD1694.S6$5DI

053 - LC Classification Number (R)

Indicators

Subfield Codes

Examples