Discworld Roleplaying Game: Adventures on the Back of the Turtle

From Author Wars - https://authorwars.com/publications/discworld-roleplaying-game-adventures-on-the-back-of-the-turtle-71134.html

Overview:

Title: Discworld Roleplaying Game: Adventures on the Back of the Turtle
Author: John M. Ford, Phil Masters, Terry Pratchett
Year: 2002
ISBN-10: 1556346875
Publisher: Steve Jackson Games
Price: $34.95
Pages: 240
Binding: Hardcover
Type: Non-fiction
Title Reference: Discworld Roleplaying Game: Adventures on the Back of the Turtle
Notes: First Edition, 3rd printing. RPG source book. Most of the book is information about the Discworld universe. John M. Ford credited on title-page for additional material, so I'll leave him as a co-author. Edited by Steve Jackson (US) - who gets publisher credit anyway, so I've removed him. Paul Kidby definitely in for a LOT of Art. Someday I'll actually READ it and check whether the credited Maps are the same as published elsewhere.