Starman's Quest
Robert Silverberg
The World That Couldn't Be
Clifford D. Simak
First on the Moon
Jeff Sutton
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 Scarlet Lake Mystery
Harold Leland Goodwin
Rick Brant Science Adventure (13)
The Pirates of Shan
Rick Brant Science Adventure (14)
The Time Traders
Andre Norton
Ross Murdock / Time Traders (1)
The Standardized Man
Stephen Bartholomew
Assassin
J. F. Bone
The Barbarians
Algis Budrys
Traders Risk
Roger Dee
The Repairman
Harry Harrison
Feet of Clay
Robert Hoskins
Bread Overhead
Fritz Leiber
Contamination Crew
Alan E. Nourse
The Blue Tower
Evelyn E. Smith
The Big Bounce
Walter Tevis
Graveyard of Dreams
H. Beam Piper
Federation (1)