National Strength & Conditioning Association (U.S.) & Willardson, J. M. (2014). Developing the core. Human Kinetics.
Čikaški stil citiranja (17. izdanje)National Strength & Conditioning Association (U.S.) i Jeffrey M. Willardson. Developing the Core. Champaign, IL: Human Kinetics, 2014.
MLA način citiranja (9. izdanje)National Strength & Conditioning Association (U.S.) i Jeffrey M. Willardson. Developing the Core. Human Kinetics, 2014.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.