Library of Congress >> MARC >> Bibliographic >> 76X-78X >> 774

774 - Constituent Unit Entry (R)


MARC 21 Bibliographic - Full
October 2009

First Indicator
Note controller
0 - Display note
1 - Do not display note

Second Indicator
Display constant controller
# - Constituent unit
8 - No display constant generated


Subfield Codes
$a - Main entry heading (NR)
$b - Edition (NR)
$c - Qualifying information (NR)
$d - Place, publisher, and date of publication (NR)
$g - Related parts (R)
$h - Physical description (NR)
$i - Relationship information (R)
$k - Series data for related item (R)
$m - Material-specific details (NR)
$n - Note (R)
$o - Other item identifier (R)
$r - Report number (R)
$s - Uniform title (NR)
$t - Title (NR)
$u - Standard Technical Report Number (NR)
$w - Record control number (R)
$x - International Standard Serial Number (NR)
$y - CODEN designation (NR)
$z - International Standard Book Number (R)
$4 - Relationship code (R)
$6 - Linkage (NR)
$7 - Control subfield (NR)
    /0 - Type of main entry heading
    /1 - Form of name
    /2 - Type of record
    /3 - Bibliographic level
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Information concerning a constituent unit associated with a larger bibliographic unit (vertical relationship). When a note is generated from this field, the introductory term Constituent unit: may be generated based on the field tag for display.

Constituent units may be part of a single bibliographic item, a multipart item, or a collection. The constituent item may or may not be described in a separate bibliographic record.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

Description of the first indicator position and all subfield codes, as well as input conventions except for display constants, for field 774 are given in the 76X-78X Linking Entries-General Information section.

INDICATORS

Second Indicator - Display constant controller
Controls the generation of a display constant preceding the data in the linking entry field.
# - Constituent unit
Used to generate the display constant Constituent unit:.
8 - No display constant generated
Information may be provided in subfield $i (Relationship information) when special introductory text is needed.

EXAMPLES

245 10$a[136th Street, southeastern section of the Bronx]$h[graphic].
774 0#$81\c$oNYDA.1993.010.00130. $n[DIAPimage].$tMap of area with highlighted street
774 0#$oNYDA.1993.010.00130. $n[DIAPimage]$tMap of area with highlighted street
774 0#$82\c$oNYDA.1993.010.00131. $n[DIAPimage].$tView of Mill Brook Houses from one of the houses,$d89/05
774 0#$oNYDA.1993.010.00131. $n[DIAPimage]$tView of Mill Brook Houses from one of the houses,$d89/05
774 0#$83\c$oNYDA.1993.010.00132. $n[DIAPimage].$tView SE from Mill Brook Houses on rooftop on Cypress Ave. between 136th St. and 137th St.,$d93/05
774 0#$oNYDA.1993.010.00132. $n[DIAPimage]$tView SE from Mill Brook Houses on rooftop on Cypress Ave. Between 136th St. and 137th St.,$d93/05
774 0#$84\c$oNYDA.1993.010.00133. $n[DIAPimage].$tView N from 136th St. roof top of area between Bruckner Expressway and Cypress Ave.,$d93/06
774 0#$oNYDA.1993.010.00133. $n[DIAPimage]$tView N from 136th St. roof top area between Bruckner Expressway and Cypress Ave.,$d93/06
774 0#$85\c$oNYDA.1993.010.00134. $n[DIAPimage].$tView E from rooftop of garden bounded by Bruckner Expressway, 136th St. and 135th St.,$d93/06
774 0#$oNYDA.1993.010.00134. $n[DIAPimage]$tView E from rooftop of garden bounded by Bruckner Expressway, 136th St. and 135th St.,$d93/06
856 7#$81.1\c$uhttp://www.cc.columbia.edu/imaging/photocd/3009-1031-1443/IMG0089.512.gif$2http
856 7#$81.2\c$uhttp://www.cc.columbia.edu/imaging/diap/jfif00/.mosaic/nyc00217.jpg$2http
856 7#$82.1\c$uhttp://www.cc.columbia.edu/imaging/photocd/3009-1031-1443/IMP0090.512.gif$2http
856 7#$82.2\c$uhttp://www.cc.columbia.edu/imaging/diap/jfif00/.mosaic/nyc00345.jpg$2http
856 7#$83.1\c$uhttp://www.cc.columbia.edu/imaging/photocd/3009-1031-1443/IMP0091.512.gif$2http
856 7#$83.2\c$uhttp://www.cc.columbia.edu/imaging/diap/jfif00/.mosaic/nyc00346.jpg$2http
856 7#$84.1\c$uhttp://www.cc.columbia.edu/imaging/photocd/3009-1031-1443/IMP0092.512.gif$2http
856 7#$84.2\c$uhttp://www.cc.columbia.edu/imaging/diap/jfif00/.mosaic/nyc00347.jpg$2http
856 7#$85.1\c$uhttp://www.cc.columbia.edu/imaging/photocd/3009-1031-1443/IMP0094.512.gif$2http
856 7#$85.2\c$uhttp://www.cc.columbia.edu/imaging/diap/jfif00/.mosaic/nyc00349.jpg$2http
[Record is for a larger bibliographic unit; 774 fields give entries for constituent units with links to URL's in field 856 (Electronic Location and Access) for the images themselves]

CONTENT DESIGNATOR HISTORY

Indicator 2 - Display constant controller
0 - Includes [OBSOLETE] [CAN/MARC only]

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