APA (7th ed.) Citation

Caldwell, S. (1980). Settlers in space: The fight for survival on distant worlds. Crescent.

Chicago Style (17th ed.) Citation

Caldwell, Steven. Settlers in Space: The Fight for Survival on Distant Worlds. New York: Crescent, 1980.

MLA (9th ed.) Citation

Caldwell, Steven. Settlers in Space: The Fight for Survival on Distant Worlds. Crescent, 1980.

Warning: These citations may not always be 100% accurate.