Library of Congress >> MARC >> Authority >> 667-68X >> 688

688 - Application History Note (R)


MARC 21 Authority - Concise
2007

Information that documents changes in the application of a 1XX heading.

Indicators
First - Undefined
# - Undefined
Second - Undefined
# - Undefined
Subfield Codes
$a - Application history note (NR)
$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.
$8 - Field link and sequence number (R)
See description of this subfield in Appendix A: Control Subfields.
Examples
688 ##$a(91)75; was see under CYCLOHEXANES 1975-90
688 ##$aMarch 1990 note added
688 ##$aestab. 1975; heading was: Cruelty to children [1952-1975]

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