None But Man by Gordon R. Dickson 1974 Pyramid Paperback

None But Man, by Gordon R. Dickson, Pyramid book #T2428, first edition 1971

Soldier, Ask Not by Gordon R. Dickson, 1st DAW Books Paperback Edition, Nov 1975

The R-Master by Gordon R. Dickson - Daw #137 First Print 1975 - Paperback

DORSAI ! by GORDON R. DICKSON DAW Science Fiction Paperback 1976

Vintage_Tactics of Mistake by Gordon R Dickson 1971 DAW Paperback

Tactics of Mistake by Gordon Dickson 1972 DAW Paperback

Gordon R DICKSON / None But Man 1977