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