Giant Killers
Keith Laumer
Retief (1)
The Rogue Dragon
Phoebe Ravencraft
A Charge of Valor (Book #6 in the Sorcerer's Ring)
Morgan Rice
Sorcerer's Ring (6)
Bailey's Ark
Burt K. Filer
Blue Mars
Kim Stanley Robinson
Mars Trilogy (3)
Green Mars
Mars Trilogy (2)
Red Mars
Mars Trilogy (1)