APA Citation

Wells, W. (2009). Apocalypse When?: [E-Book] : Calculating How Long the Human Race Will Survive / by Willard Wells. New York, NY: Praxis.

Chicago Style Citation

Wells, Willard. Apocalypse When?: [E-Book] : Calculating How Long the Human Race Will Survive / By Willard Wells. New York, NY: Praxis, 2009.

MLA Citation

Wells, Willard. Apocalypse When?: [E-Book] : Calculating How Long the Human Race Will Survive / By Willard Wells. New York, NY: Praxis, 2009.

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