What's He Doing in There?
Fritz Leiber
The Machine That Saved the World
Murray Leinster
Resurrection
Robert Shea
The Happy Unfortunate
Robert Silverberg
My Father, the Cat
Henry Slesar
The Knights of Arthur
Frederik Pohl
The Hated
Starman's Quest
The World That Couldn't Be
Clifford D. Simak
And Then the Town Took Off
Richard Wilson
A Planet for Texans
H. Beam Piper & John J. McGuire
Ace Double (299)
The Survivors
Tom Godwin
Ragnarok (1)
The Time Traders
Andre Norton
Ross Murdock / Time Traders (1)
The Barbarians
Algis Budrys
Traders Risk
Roger Dee
The Repairman
Harry Harrison
Bread Overhead
Contamination Crew
Alan E. Nourse
The Blue Tower
Evelyn E. Smith
The Big Bounce
Walter Tevis