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-111381.html

Overview:

Title: Discworld Roleplaying Game: Adventures on the Back of the Turtle
Author: Phil Masters, Terry Pratchett, John M. Ford
Year: 2002
ISBN-10: 1556342616
Publisher: Steve Jackson Games
Price: $26.95
Pages: 240
Binding: Trade Paperback
Type: Non-fiction
Title Reference: Discworld Roleplaying Game: Adventures on the Back of the Turtle
Notes: RPG source book.