The Compleat Adventures of Jules de Grandin, Volume 2
Seabury Quinn
The Compleat Adventures of Jules de Grandin (2)
The Starchild Trilogy
Frederik Pohl & Jack Williamson
Starchild (1)
The Best of Frederik Pohl
Frederik Pohl
In the Problem Pit
Critical Mass
C. M. Kornbluth & Frederik Pohl
Four-Day Planet / Lone Star Planet
H. Beam Piper & John J. McGuire
Empire
H. Beam Piper
Federation (1)
The Fuzzy Papers
Fuzzy (1)
If This Goes On
Charles Nuetzel
Perilous Dreams
Andre Norton