APA (7th ed.) Citation

Wolff, Welder, & Everson. (1995). Bodybuilding 101: Everthing you need to know to get the body you want. Contemporary Books.

Chicago Style (17th ed.) Citation

Wolff, Welder, and Everson. Bodybuilding 101: Everthing You Need to Know to Get the Body You Want. Ilinois: Contemporary Books, 1995.

MLA (8th ed.) Citation

Wolff, et al. Bodybuilding 101: Everthing You Need to Know to Get the Body You Want. Contemporary Books, 1995.