None But Man by Gordon R. Dickson Paperback DAW Sci-Fi Novel

Tactics of Mistake by Gordon R. Dickson Paperback DAW Sci-Fi Dorsai Novel

The Pritcher Mass By Gordon R. Dickson 1973 Daw Books First Printing

Gordon R Dickson - Necromancer (Dorsai Prequel) - Paperback 1978 (DAW UE1481)

Pro Gordon R Dickson Ace Science Fiction Illustrated Novel 1978 First Printing

PRO by Gordon R. Dickson vintage 1978 Ace FIRST PRINTING paperback SCI FI

Pro By Gordon R. Dickson Ace Illustrated First Printing 1978 James R. Odbert

NECROMANCER by Gordon Dickson, 1978 First DAW Printing, Mass Market-Good