Three Hearts & Three Lions
Poul Anderson
The High Crusade
Three in time
Wilson Tucker & Poul Anderson & Chad Oliver
The Man Kzin Wars (Man Kzin Wars, Book 1)
Larry Niven & Poul Anderson & Dean Ing
Man-Kzin Wars (1)
The Stars Are Also Fire
The Boat of a Million Years
Genesis
Agent Of The Terran Empire
David Falkayn: Star Trader (Technic Civlization)
Avatar, The
Starfarers
Inconstant star
Operation Luna
Operation Chaos
Ensign flandry
After Doomsday