020 International Standard Book Number (R) (Variable Data Field)

Field definition and scope:

Field 020 contains the International Standard Book Number (ISBN), the terms of availability, and any canceled or invalid ISBN copied from field 020 of a MARC bibliographic record for a multipart item that is cataloged as a set. The inclusion of this field in the established heading record for a series provides a machine link within a system between the authority record for the series and a bibliographic record in which the heading is used as a series added entry. Each valid ISBN associated with the series is contained in a separate 020 field. The subfields in this field are defined for consistency with field 020 in MARC 21 Format for Bibliographic Data.

An International Standard Serial Number (ISSN) associated with a heading for an issue of a serial for which series-type treatment is provided is contained in field 022 (International Standard Serial Number) .

The National level record requirement for this field is Mandatory if applicable.

Field 020 is repeatable .

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National level (NLR) record requirements , and designator repeatability , see table below:

Input conventions:

ISBN structure

Display constants

LC guidelines for usage:

020 International Standard Book Number

Related MARC fields or documents:

022 International Standard Serial Number

880 Alternate Graphic Representation

Information and Documentation - International Standard Book Numbering (ISBN) (ISO 2108)

Library of Congress Rule Interpretations

MARC 21 Format for Bibliographic Data:

020 International Standard Book Number

See also:

0XX Numbers and Codes

Variable Data Fields