MARC 21 Format for Bibliographic Data: 786: Data Source Entry (Network Development and MARC Standards Office, Library of Congress)

786 - Data Source Entry (R)

MARC 21 Bibliographic - full

May 2017

First Indicator	Second Indicator
Note controller 0 - Display note 1 - Do not display note	Display constant controller # - Data source 8 - No display constant generated

First Indicator

Second Indicator

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

Display constant controller
# - Data source
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) $j - Period of content (NR) $k - Series data for related item (R) $m - Material-specific details (NR) $n - Note (R) $o - Other item identifier (R) $p - Abbreviated title (NR)	$r - Report number (R) $s - Uniform title (NR) $t - Title (NR) $u - Standard Technical Report Number (NR) $v - Source Contribution (NR) $w - Record control number (R) $x - International Standard Serial Number (NR) $y - CODEN designation (NR) $z - International Standard Book Number (R) $4 - Relationship (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)

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)
$j - Period of content (NR)
$k - Series data for related item (R)
$m - Material-specific details (NR)
$n - Note (R)
$o - Other item identifier (R)
$p - Abbreviated title (NR)

$r - Report number (R)
$s - Uniform title (NR)
$t - Title (NR)
$u - Standard Technical Report Number (NR)
$v - Source Contribution (NR)
$w - Record control number (R)
$x - International Standard Serial Number (NR)
$y - CODEN designation (NR)
$z - International Standard Book Number (R)
$4 - Relationship (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 pertaining to a data source to which the described item is related. It may contain information about other files, printed sources, or collection procedures.

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 786 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.

# - Data source

Used to generate the display constant Data source:.

8 - No display constant generated

Information may be provided in subfield $i (Relationship information) when special introductory text is needed.

■ EXAMPLE

786

0#$aUnited States. Defense Mapping Agency.$tReno, NV-CA west digital terrain elevation data$vData for reformatting to DEM format

(05/17/2017)