Cita APA (7a ed.)

Simmons, G. S. (2004). What Darwin didn't know. Harvest House.

Cita Chicago Style (17a ed.)

Simmons, Geoffrey S. What Darwin Didn't Know. Eugene (Oregón): Harvest House, 2004.

Cita MLA (9a ed.)

Simmons, Geoffrey S. What Darwin Didn't Know. Harvest House, 2004.