Schick Lawrence Heroic worlds : a history and guide to role-playing games / Lawrence Schick. - Buffalo : Prometheus Books, c1991. - 448 p. : ill. ; 24 cm. Includes index. ISBN: 0879756535 (alk. paper) : Subjects--Topical Terms: Fantasy games--History LC Class. No.: GV1469.6 Dewey Class. No.: 793.93