What Were the Gremholzs' Dimensions Again?

From Author Wars - https://authorwars.com/publications/what-were-the-gremholzs-dimensions-again-253405.html

Overview:

Title: What Were the Gremholzs' Dimensions Again?
Author: Brian Caswell
Year: 1998
ISBN-10: 0702230901
Publisher: University of Queensland Press
Price: A$
Pages: 86
Binding: Paperback
Type: Novel
Title Reference: What Were the Gremholzs' Dimensions Again?
Notes:
- No printed price.
- Despite Worldcat which states the size is 19cm, the book is definitely 18cm high & thus is a "pb" in ISFDB.