050 Library of Congress Classification Number (R) (Variable Data Field)
Field definition and scope:
Field 050 contains a classification number or call number assigned either by the Library of Congress or by other agencies using the Library of Congress Classification or LC Classification--Additions and Changes. The second indicator values distinguish between content actually assigned by the Library of Congress and content assigned by an organization other than LC.
Field 050 is repeatable.
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, and designator repeatability, see table below:
Position |
Description |
Repeatability |
Field 050 |
Library of Congress Classification Number |
R |
Indicator: |
|
|
First |
Undefined; contains a blank |
|
|
|
|
Second |
|
|
0 |
|
|
4 |
|
|
|
|
|
Subfield code: |
|
|
$a |
R |
|
$b |
NR |
|
$3 |
NR |
|
$6 |
NR |
|
$8 |
R |
Related MARC fields or documents:
Library of Congress Classification
LC Classification--Additions and Changes
Cutter-Sanborn Three-Figure Author Table
Subject Cataloging Manual: Shelflisting
See also: