The Butter Battle Book
date of publication: 1984
ISBN-13: 978-0-394-86580-5
ISBN-10: 0-394-86580-4
work from which this is an edition: The Butter Battle Book
edition language: English
Engaged in a long-running battle, the Yooks and the Zooks develop more and more sophisticated weaponry as they attempt to outdo each other. Source: OpenLibrary
Edition - isbn:9780394865805 - inv:dc351dfb7e5b837b15e7ca526edaf32c