Pirates of Venus 66505 SF Edgar Rice Burroughs Pirates of Venus 66509 SF Edgar Rice Burroughs Pirates of Venus 66833 SF Andre Norton Plague Ship (1973) 66900 SF Jack Vance Planet of Adventure#2: Servants of the Wankh 66901 SF Jack Vance Planet of Adventure#3: The Dirdir (1969) 66902 SF Jack Vance Planet of Adventure#4: The Pnume (1970) 66952 SF Ursula K. Le Guin Planet of Exile 67020 SF Marion Zimmer Bradley The Planet Savers 67025 SF Marion Zimmer Bradley The Planet Savers and The Sword of Aldones 67060 SF John Jakes The Planet Wizard 67061 SF John Jakes The Planet Wizard 67145 SF Michael Kurland Pluribus 67402 SF Robert A. Heinlein Podkayne of Mars 67555 SF Andre Norton Postmarked the Stars (1969) 67800 SF Philip K. Dick The Preserving Machine (1969) 67801 SF Philip K. Dick The Preserving Machine (1976) 67900 SF Thomas M. Disch The Prisoner (1969) 67901 SF David McDaniel The Prisoner#2 67902 SF Hank Stine The Prisoner#3 (1970) 67937 SF L. Sprague de Camp The Prisoner of Zhamanak 68023 SF Gordon R. Dickson Pro 68305 SF Stephen Robinette Projections 69168 SF Arsen Darnay The Purgatory Zone (1981) 69190 SF L. Sprague de Camp The Purple Pterodactyls: The Adventures of Wilson Newbury, Ensorcelled Financier (1980) 69540 SF D. G. Compton The Quality of Mercy 69658 SF L. Sprague de Camp The Queen of Zamba 69681 SF Andre Norton Quest Crosstime 69682 SF Andre Norton Quest Crosstime 69683 SF Andre Norton Quest Crosstime 69684 SF Andre Norton Quest Crosstime 69700 SF A. E. van Vogt Quest for the Future 69770 SF Poul Anderson Question and Answer 69992 SF Jack L. Chalker Quintara Marathon#1: The Demons at Rainbow Bridge 71065 SF Alfred Coppel (as Robert Cham Gilman) The Rebel of Rhada (1968) 71083 SF E. C. Tubb Lallia: Dumarest of Terra#6 (1982) 71100 SF Andre Norton Red Hart Magic (1979) 71140 SF Robert A. Heinlein Red Planet 71156 SF David C. Smith and Richard L. Tierney The Ring of Ikribu: Red Sonja#1 (1981) 71157 SF David C. Smith and Richard L. Tierney Demon Night: Red Sonja#2 (1982) 71158 SF David C. Smith and Richard L. Tierney When Hell Laughs: Red Sonja#3 (1982) 71159 SF David C. Smith and Richard L. Tierney Endithor's Daughter: Red Sonja#4 (1982) 71160 SF D. D. Chapman and Deloris Lehman Tarzan Red Tide 71161 SF David C. Smith and Richard L. Tierney Against the Prince of