APA (7th ed.) Citation

Croswell, K. (1997). Planet quest: The epic discovery of alien solar systems. Free Press.

Chicago Style (17th ed.) Citation

Croswell, Ken. Planet Quest: The Epic Discovery of Alien Solar Systems. New York: Free Press, 1997.

MLA (8th ed.) Citation

Croswell, Ken. Planet Quest: The Epic Discovery of Alien Solar Systems. Free Press, 1997.

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