Naudsonce
H. Beam Piper
Oomphel in the Sky
Federation (1)
Hell-Planet
John T. Phillifent
The Sons of Prometheus
Alexei Panshin
A Master of Babylon
Edgar Pangborn
The Golden Horn
Tales of a Darkening World (1)
The Happy Man
Gerald W. Page
The Marginal Man
Chad Oliver
Population Implosion
Andrew J. Offutt
The Meddler
Larry Niven
There Is a Tide
Known Space (1)