534 Subfield $z - International Standard Book Number:

Subfield $z contains any International Standard Book Number (ISBN ) associated with the original.

Example:

534 ##$pOriginally published in English:$cGarden City, N.Y. : Anchor Books, 1974-1978,$nunder title:$tAnchor atlas of world history.$z0385061781 (v. 1)$z0385133553 (v. 2)