APA Citation

Gaines, C., & Butler, G. (1977). Pumping iron: The art and sport of bodybuilding. London: Sphere.

Chicago Style Citation

Gaines, Charles., and George Butler. Pumping Iron: The Art and Sport of Bodybuilding. London: Sphere, 1977.

MLA Citation

Gaines, Charles., and George Butler. Pumping Iron: The Art and Sport of Bodybuilding. London: Sphere, 1977.

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