Steve Jackson Related books COMPUTATION OF DELTA 1/5 Amer Mathematical Society • 1999 Creature of Havoc Puffin Books • 1986 GURPS Basic Set (GURPS: Generic Universal Role Playing System) Psi • 1996 Gurps Magic: A Tome of Mystic Secrets for Fantasy Roleplaying Psi • 1997 GURPS Terradyne STEVE JACKSON GAMES • 1995 Inwo Factory Set Steve Jackson Games • 1997 Killer Psi • 1998 Monster Kensington Pub Corp • 1999 Space Assassin Dell Pub Co • 1985 Starship Traveller Penguin Books • 1993