APA (7th ed.) Citation

Karas, G. B. (2005). On earth. Penguin Group Publishers.

Chicago Style (17th ed.) Citation

Karas, G. Brian. On Earth. New York: Penguin Group Publishers, 2005.

MLA (9th ed.) Citation

Karas, G. Brian. On Earth. Penguin Group Publishers, 2005.

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