Concise AACR2: 8. Standard number

8A. Preliminary rule

8A1. Punctuation

Precede this area b a full stop, spae, dash, space (.–) or start a new paragraph (see rule 0D).

8A2. Sources of information.

Take standard numbers from any suitable source.

8B. Standard number

8B1.

Give the International Standard Book Number (ISBN) 020$a, or International Standard Serial Number (ISSN) 022$b, or any other internationally agreed standard number of the bibliographic resource being described. Preced that number withh the standard abbreviation (ISBN, ISSN, etc.) and use standard hyphenation.

8B2.

If the resource has more than one such number, give the one that applies specifically to th eentity being described.