Enter Identifying Codes to search the following fields within a record: Accession Number and ISSN.

Enter one or more codes connected with Booleans (AND, OR, NOT, and SAME). Enter complete codes or partial codes using wildcards (* ? $).

To display this field on the Search page, review the instructions for Add Another Field.

Identifying Codes Search Examples

• BACD199800477905 finds the record that has this Accession Number.

• BACD1998 finds records that begin with this Accession Number.

• 0015-6639 finds records that have this ISSN identifier.

• 0232-7* finds records that begin with this ISSN identifier.

About the ISSN Identifier

The International Standard Serial Number is a unique eight-digit number that identifies periodical publications such as journals and electronic publications.

The format is four numbers, a hyphen (-), three numbers, and then a check character that may be a number or an X. Example: 0015-6639