Cold Victory
Poul Anderson
Psychotechnic League (5)
War of the Wing-Men
Nicholas Van Rijn (1)
The Makeshift Rocket
The Martian Crown Jewels
The Sky People
Maurai (1)
Brave to Be a King
Time Patrol (2)
Planet of No Return
We Claim These Stars!
Dominic Flandry (1)
The Hypnoglyph
John Ciardi
Tom Swift and His Rocket Ship
John Almquist
Tom Swift, Jr. (3)
Vault of the Ages
Horse Trader
Three Hearts and Three Lions
The Broken Sword
The Snows of Ganymede
Psychotechnic League (2)
No World of Their Own
Virgin Planet
Psychotechnic League (3)
Ring Once for Death
Robert Arthur
Big Sword
Pauline Ashwell
The Stars, Like Dust
Isaac Asimov
Trantorian Empire (2)