Gray Matters

First published	February 1974
Type	Cover Art

Date	Publication	Publisher	Type	Page
February 1974	Gray Matters	Sphere Books	Novel
February 1974	Science Fiction Monthly, February 1974	New English Library	MAGAZINE	6
September 1979	Homme, sweet homme	Fleuve Noir	Novel
February 1980	SF Perry Rhodan Magazin, 2/80	Pabel	MAGAZINE	19
July 1980	Die Duellmaschine	Bastei Lübbe	Novel

Notes