APA način citiranja

Barkley, J. E., Epstein, L. H., & Roemmich, J. N. (2009). Reinforcing Value of Interval and Continuous Physical Activity In Children.

Čikaški stil citiranja

Barkley, Jacob E., Leonard H. Epstein, i James N. Roemmich. Reinforcing Value of Interval and Continuous Physical Activity In Children. 2009.

MLA način citiranja

Barkley, Jacob E., Leonard H. Epstein, i James N. Roemmich. Reinforcing Value of Interval and Continuous Physical Activity In Children. 2009.