Russian Spring
Norman Spinrad
Digital Knight
Ryk E. Spoor
Digital Knight Universe (1)
The White Hart
Nancy Springer
Book of the Isle (1)
Science Discussions-Atten[..] F B Long
Roy A. Squires II
The Best of Both Worlds and Other Ambiguous Tales
Brian Stableford
The Dragon Man
Biotech Revolution (7)
Prince of Havoc: Twilight of the Clans VII
Michael A. Stackpole
Battletech (42)
Isard's Revenge
Star Wars: X-Wing (8)
Last and First Men
Olaf Stapledon
Last Men in London
Star Maker
Sirius: A Fantasy of Love and Discord
Odd John
Lee Hawkins Garby & Olaf Stapledon
Galaxy Science Fiction Novel (8)
In the Orbit of Saturn
R. F. Starzl
The Martian Cabal
A Wizard in Peace
Christopher Stasheff
Rogue Wizard (5)
A Wizard in Chaos
Rogue Wizard (6)
A Company of Stars
Starship Troupers (1)
Armor
John Steakley
The Marooner
Charles A. Stearns