1. Starting Forth: An Introduction to the Forth Language and Operating System for Beginners and Professionals
by Brodie Leo 
Price: USD 38.35
Dealer: Biblio, Ergodebooks
Description: Prentice Hall Ptr, 0000-00-00. 2. paperback. Used: Good. Prentice Hall Ptr ISBN 0138430799 9780138430795 [US] 

2. Starting Forth (Prentice-Hall Software Series)
by Leo Brodie; Brodie 
Price: USD 38.94
Dealer: Abebooks, Ergodebooks
Description: ISBN10: 0138430799, ISBN13: 9780138430795, [publisher: Prentice Hall] Softcover [Houston, TX, U.S.A.] [Publication Year: 1987]