Strata

From Author Wars - https://authorwars.com/publications/strata-980021.html

Overview:

Title: Strata
Author: Terry Pratchett
Year: Unknown
ISBN-10: 0312764294
Publisher: St. Martin's Press
Price: $12.95
Pages: 192
Binding: Hardcover
Type: Novel
Title Reference: Strata
Notes: Info from Archive.org copy. Later printing which lacks the "Printed in Great Britain" statement and has a higher price.