Starship Troopers
Robert A. Heinlein
Citizen of the Galaxy
Double Star
Tunnel in the Sky
Between Planets
Farmer in the Sky
Cliff and the Calories
Time for the Stars
The Star Beast
Shooting "Destination Moon"
The Revealing Pattern
Alvin Heiner
The Stowaway
The Black Fox
Gerald Heard
The Chalice of Circe
Willard Hawkins
Ultimate Life
Henry Hasse & Albert dePina
One Purple Hope!
Henry Hasse
I See You
Harry Harrison
The Robot Who Wanted to Know
Arm of the Law
The Repairman