Library of Congress >> MARC >> Authority >> 5XX  >> 550

550 - See Also From Tracing-Topical Term (R)


MARC 21 Authority - full
October 2014

First Indicator Second Indicator
Undefined
# - Undefined

Undefined
# - Undefined


Subfield Codes
  • $a - Topical term or geographic name entry element (NR)
  • $b - Topical term following geographic name entry element (NR)
  • $g - Miscellaneous information (R)
  • $i - Relationship information (R)
  • $v - Form subdivision (R)
  • $w - Control subfield (NR)
         /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)
  • $0 - Authority record control number or standard number (R)
  • $4 - Relationship code (R)
  • $5 - Institution to which field applies (R)
  • $6 - Linkage (NR)
  • $8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Tracing for a topical term see also from reference.

Used in an established heading or established heading and subdivision record to trace a see also from reference from an established topical term to a related established heading.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

Most of the content designators defined for field 550 are the same as those defined for field 150 (Heading-Topical Term), field 450 (See From Tracing-Topical Term), and field 750 (Established Heading Linking Entry-Topical Term). Description, guidelines, and input conventions for shared content designators are given in the X50 Topical Terms-General Information section.

Guidelines for applying the subfield $w (Control subfield), subfield $i (Relationship information), and $4 (Relationship code) in field 550 are given in the Tracings and References-General Information section.

EXAMPLES

150 ##$aTritheism
550 ##$wg$aGod
150 ##$aSand Creek Massacre, Colo., 1864
550 ##$wg$aIndians of North America$xWars$y1862-1865

Library of Congress >> MARC >> Authority >> 5XX  >> 550
(10/20/2014)
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