50 Cent & O'Connell, J. (2013). Formula 50: A 6-week workout and nutrition plan that will transform your life. Avery.
Chicago Style (17th ed.) Citation50 Cent and Jeff O'Connell. Formula 50: A 6-week Workout and Nutrition Plan That Will Transform Your Life. New York: Avery, 2013.
MLA (8th ed.) Citation50 Cent and Jeff O'Connell. Formula 50: A 6-week Workout and Nutrition Plan That Will Transform Your Life. Avery, 2013.
Warning: These citations may not always be 100% accurate.