Role-Playing Mastery

From Author Wars - https://authorwars.com/publications/role-playing-mastery-918465.html

Overview:

Title: Role-Playing Mastery
Author: Gary Gygax
Year: 1987
ISBN-10: 0399512934
Publisher: Perigee Books
Pages: 176
Binding: Trade Paperback
Type: Non-fiction
Title Reference: Role-Playing Mastery
Notes: Unknown