5xx Introduction

Contents   Fixed field   Access points   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx   Control subfields

504  Bibliography, Etc. Note (R)

Input Standards

Required if applicable/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Bibliography, etc. note (NR) Mandatory/Mandatory
ǂb Number of references (NR) Optional/Optional
ǂ8 Field link and sequence number (R) Optional/Optional


A note about a bibliography, discography, filmography, webliography, and/or other bibliographic references in an item. Use field 504 also to indicate the presence of a bibliography, etc., in accompanying material that is described in the record. For multipart items, including serials, the note may pertain to all parts or to a single issue or part.

Use field 500 for regulations, statutes, and tables of cases. Enter notes in field 500 if a note mentions contents in addition to the bibliography and the bibliography is not deemed sufficiently extensive to warrant a separate note. Use field 504, however, when the presence of an index is mentioned in a bibliography note. In cases of doubt, use field 504 rather than field 500.

Refer to LCRI 2.7B18 or LC-PCC PS for further information regarding the use of 504 notes. For current cataloging do not input square brackets around unnumbered pages or leaves per LC-PCC PS 1.7.1.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character


2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank ( blank character ).

blank character Undefined


ǂa Bibliography, etc. note

The entire text of the note.

504     Includes bibliographical references.
504     Includes bibliographical references (pages 310-325) and index.
[Item includes bibliography, webliography, and index]
504     Includes bibliographical references (leaves 238-239).
504     Includes bibliographical references (leaf 315) and index.
504     Chronological list of the author's works: pages 469-475.
504     Discography: pages 105-111.
504     Filmography: volume 2, pages 344-360.
ǂb Number of references

The number of references contained in the bibliography. Generally, it is used as a way to determine the significance of a bibliography. Enter a simple numerical count of references following the bibliography note.

504     Includes bibliographical references. ǂb 19
504     Includes bibliographical references (pages 67-68). ǂb 51
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.


For indexing and searching information, see Searching WorldCat Indexes, field 504.

This page last revised: October 6, 2016