APA (7th ed.) Citation

Grinspoon, D. H. (2003). Lonely planets: The natural philosophy of alien life. ECCO.

Chicago Style (17th ed.) Citation

Grinspoon, David Harry. Lonely Planets: The Natural Philosophy of Alien Life. New York: ECCO, 2003.

MLA (9th ed.) Citation

Grinspoon, David Harry. Lonely Planets: The Natural Philosophy of Alien Life. ECCO, 2003.

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