APA (7e ed.) Bronvermelding

Biddle, S., & Smith, A. L. (2008). Youth physical activity and sedentary behavior: Challenges and solutions. Human Kinetics. https://doi.org/10.5040/9781492595601

Chicago (17e ed.) Bronvermelding

Biddle, Stuart, en Alan L. Smith. Youth Physical Activity and Sedentary Behavior: Challenges and Solutions. Champaign, IL: Human Kinetics, 2008. https://doi.org/10.5040/9781492595601.

MLA (9e ed.) Bronvermelding

Biddle, Stuart, en Alan L. Smith. Youth Physical Activity and Sedentary Behavior: Challenges and Solutions. Human Kinetics, 2008. https://doi.org/10.5040/9781492595601.