Clean Slate
James H. Schmitz
Claws from the Night
Fritz Leiber
Fafhrd and the Gray Mouser (1)
The Claw and the Clock
Christopher Anvil
Federation of Humanity (1)
Clarimonde
Theophile Gautie
The Clapping Hands of God
Michael F. Flynn
Hunch
Clifford D. Simak
The Civilisation Game (6)
Masquerade
The Civilisation Game (4)
The Civilization Game
The Civilisation Game (2)
The City That Grew in the Sea
Keith Laumer
Retief (1)
The City on the Sand
George Alec Effinger
Budayeen (1)
The City of Ul Chalan
Richard K. Lyon
The City of the Living Dead
Laurence Manning & Fletcher Pratt
City of Reason
Matthew Jarpe
Homesteader / Coordinator Group (3)
City
City (1)
Citadel
Algis Budrys
The Circulation of the Blood
Brian W. Aldiss
Circle
George Tucker