Pythias
Frederik Pohl
The Midas Plague
Ullr Uprising
H. Beam Piper
Federation (1)
Ministry of Disturbance
The Keeper
The Edge of the Knife
Temple Trouble
Paratime Police (1)
Dearest
Genesis
Last Enemy
The Mercenaries
A Planet for Texans
H. Beam Piper & John J. McGuire
Ace Double (299)
Uller Uprising
Ye of Little Faith
Rog Phillips
Rat in the Skull
The Yellow Pill
Pariah
The Phantom Truck Driver
The Friendly Wolf
University
Peter Phillips