Hiding Place
Poul Anderson
Nicholas Van Rijn (1)
The Three-Cornered Wheel
David Falkayn (1)
A Sun Invisible
A Twelvemonth and a Day
Hunters of the Sky Cave
Dominic Flandry (1)
Warriors from Nowhere
Day of Burning
The Plague of Masters
The Man-Kzin Wars
Larry Niven & Poul Anderson & Dean Ing
Man-Kzin Wars (1)
Explorations
New America
History of Rustum (1)
The Long Night
Time Patrolman
Time Patrol (2)