APA (7th ed.) Citation

D'Adamo, P., & Whitney, C. (2007). The genotype diet. Broadway Books.

Chicago Style (17th ed.) Citation

D'Adamo, Peter, and Catherine Whitney. The Genotype Diet. New York: Broadway Books, 2007.

MLA (9th ed.) Citation

D'Adamo, Peter, and Catherine Whitney. The Genotype Diet. Broadway Books, 2007.