APA-viite (7. p.)

National Strength & Conditioning Association (U.S.) & Willardson, J. M. (2014). Developing the core. Human Kinetics.

Chicago-viite (17. p.)

National Strength & Conditioning Association (U.S.) ja Jeffrey M. Willardson. Developing the Core. Champaign, IL: Human Kinetics, 2014.

MLA-viite (9. p.)

National Strength & Conditioning Association (U.S.) ja Jeffrey M. Willardson. Developing the Core. Human Kinetics, 2014.