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450 - See From Tracing-Topical Term (R)


MARC 21 Authority - Concise
2009

Tracing for a topical term see from reference.

Used in an established heading or established heading and subdivision record to trace a see from reference from a topical term not used in an established heading.

See field 150 for descriptions of most content designators.

Indicators
First - Undefined
# - Undefined
Second - Undefined
# - Undefined
Subfield Codes
$a - Topical term or geographic name entry element (NR)
$b - Topical term following geographic name entry element (NR)
$i - Relationship information (R)
See Tracings and References
$v - Form subdivision (R)
$w - Control subfield (NR)
See Tracings and References
/0 - Special relationship
/1 - Tracing use restriction
/2 - Earlier form of heading
/3 - Reference display
$x - General subdivision (R)
$y - Chronological subdivision (R)
$z - Geographic subdivision (R)
$4 - Relationship code (R)
See Tracings and References
$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.
$8 - Field link and sequence number (R)
See description of this subfield in Appendix A: Control Subfields.
Examples
450 ##$aEnglish drama$xAfrican authors
450 ##$aMusic$y15th century$xTheory
450 ##$aExclamations (Linguistics)

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