IS International Standard Serial Number

0735-6757 in is

The IS field contains the eight-digit International Standard Serial Number (ISSN) of the original periodical described in the record. The ISSN uniquely identifies the original journal and facilitates ordering.

When searching, include a hyphen between the fourth and fifth digits. Since not all records include an ISSN, search the title abbreviation from the Source (SO) field for more complete results.

Browsing ISSNs

As an alternative to searching with the field label, you can browse complete ISSNs and search for them directly from the International Standard Serial Number Field-Specific Index. This field-specific index contains only ISSNs available in the database. Results of a search in this index display in the IS field.