The Road to the Rim / The Hard Way Up
A. Bertram Chandler
The Saga of Commodore John Grimes (Ace Double Set) (1)
Riverworld
Philip José Farmer
Riverworld (1)
The Rival Rigelians and Planetary Agent X
Mack Reynolds
United Planets (1)
Rise of the Terran Empire
Poul Anderson
Technic Civilization Saga (3)
The Rise of Nagash
Mike Lee
The Rise of Nagash (1)
Rihannsu: The Bloodwing Voyages
Diane Duane & Peter Morwood & Gene Roddenberry
Star Trek: Rihannsu (1)
The Right To Arm Bears
Gordon R. Dickson
Dilbia (1)
The Revolution Trade
Charles Stross
The Merchant Princes (3)
Retief Unbound
Keith Laumer
Retief (1)
Retief (10)
The Regiment: A Trilogy
John Dalmas
Regiment (1)