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.
