APA (7th ed.) Citation

Croswell, K. (1998). Planet quest: The epic discovery of alien solar systems (1st Harvest ed.). Harcourt Brace.

Chicago Style (17th ed.) Citation

Croswell, Ken. Planet Quest: The Epic Discovery of Alien Solar Systems. 1st Harvest ed. San Diego: Harcourt Brace, 1998.

MLA (9th ed.) Citation

Croswell, Ken. Planet Quest: The Epic Discovery of Alien Solar Systems. 1st Harvest ed. Harcourt Brace, 1998.