Swordships of Scorpio
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Dray Prescot (4)
Planet of Adventure
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Planet of Adventure (1)
Brain World
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United Planets (7)
The Dragonriders of Pern
Anne McCaffrey
Dragonriders of Pern omnibuses (1)
Transit to Scorpio
Dray Prescot (1)
Solaris
Stanislaw Lem
Trader to the Stars
Poul Anderson
Nicholas Van Rijn (2)
Code Duello
United Planets (4)
Amazon Planet
United Planets (5)
Restoree
The Sun Saboteurs
Damon Knight
No Truce with Terra
Philip E. High
Babel-17
Samuel R. Delany