MARC 21 Format for Authority Data: 455: See From Tracing-Genre/Form Term (Network Development and MARC Standards Office, Library of Congress)

First Indicator	Second Indicator
Undefined # - Undefined	Undefined # - Undefined


Subfield Codes
$a - Genre/form term (NR) $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) $4 - Relationship (R) $5 - Institution to which field applies (R) $6 - Linkage (NR) $8 - Field link and sequence number (R)

Tracing for a genre/form term see from reference.

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

Most of the content designators defined for field 455 are the same as those defined for field 155 (Heading-Genre/Form Term), field 555 (See Also From Tracing-Genre/Form Term), and field 755 (Established Heading Linking Entry-Genre/Form Term). Description, guidelines, and input conventions for shared content designators are given in the X55 Genre/Form Terms-General Information section.

Guidelines for using subfield $w (Control subfield), subfield $i (Relationship information), and subfield $4 (Relationship) in field 455 are given in the Tracings and References-General Information section.

■ EXAMPLES

155	##$aOperas
455	##$aOperettas

155	##$aScience fiction
455	##$aSci-fi

155	##$aPanoramas
455	##$aPanoramic views

455 - See From Tracing-Genre/Form Term (R)

FIELD DEFINITION AND SCOPE

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

■ EXAMPLES