APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Simmons, Geoffrey. What Darwin Didn't Know. Eugene, OR: Harvest House Publishers, 2004.

MLA (9th ed.) Citation

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

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