1. 01. English Non Fiction The Inventor's Handbook by Park,Robert Publication: Ohio Betterway Books 1990 . 231p. Date:1990 Availability: Copies available: (1), Actions:
2. 01. English Non Fiction The game inventor's handbook/ by Peek, Stephen, Publication: Cincinati, Ohio: Betterway Books, 1993 , Rev. ed. of: Gameplan. c1987. | Includes index. Date:1993 Availability: Copies available: (1), Actions:

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