1.9A. Preliminary rule

1.9A1. Scope.

Use this area only in item level description to record international standard numbers pertaining to the item.

1.9A2. Punctuation.

Precede this area by a full stop, space, dash, space or start a new paragraph.

1.9A3. Sources of information.

Take information included in this area from any source. Do not enclose any information in brackets.

1.9B. Standard number

1.9B1.

Give the International Standard Book Number (ISBN), International Standard Serial Number (ISSN), or any other internationally agreed standard number for the item being described. Give such numbers with the agreed abbreviation and with the standard spacing or hyphenation.

ISBN 0-919223-5

ISBN 0-921542-02-X

1.9B2.

If an item bears two or more such numbers, give the one that applies to the item being described.

ISBN 0-379-0051-4 (v. 1)

1.9B3.

Give any number of an item other than an international standard number or publisher’s series number in a note (see 1.8B11).

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