AN Accession Number

1993000520 in an

The AN field contains a unique number, which identifies the document; it enables you to retrieve a specific record at any time. The first four digits of the accession number refer to the bibliography year.

Browsing Accsssion Numbers

As an alternative to searching with the field label, you can browse numbers and search for them directly from the Accession Number Field-Specific Index. This field-specific index contains only numbers drawn from the AN field, therefore, your search will always yield results. Search results display in the AN field.