Cita APA

Brittenham, D., & Brittenham, G. (1997). Stronger abs and back. Human Kinetics.

Citación estilo Chicago

Brittenham, Dean, and Greg Brittenham. Stronger Abs and Back. Champaign, IL: Human Kinetics, 1997.

Cita MLA

Brittenham, Dean, and Greg Brittenham. Stronger Abs and Back. Human Kinetics, 1997.

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