Masters of Space
Edward E. Smith & E. Everett Evans
Blackman's Burden
Mack Reynolds
Homer Crawford (1)
This World Is Taboo
Murray Leinster
Med Service (4)
The Silver Eggheads
Fritz Leiber
Pilgrimage: The Book of the People
Zenna Henderson
The People (1)
The Stainless Steel Rat
Harry Harrison
The Stainless Steel Rat (4)
Delusion World
Gordon R. Dickson
A Fall of Moondust
Arthur C. Clarke
Rendezvous on a Lost World
A. Bertram Chandler
John Grimes Rimworld (19)
The Dreaming Earth
John Brunner