Smith, A. L., & Biddle, S. (2008). Youth physical activity and sedentary behavior: Challenges and solutions. Human Kinetics.
Chicago Style (17. basım) AtıfSmith, Alan L., ve Stuart Biddle. Youth Physical Activity and Sedentary Behavior: Challenges and Solutions. Champaign, Ill: Human Kinetics, 2008.
MLA (9th ed.) AtıfSmith, Alan L., ve Stuart Biddle. Youth Physical Activity and Sedentary Behavior: Challenges and Solutions. Human Kinetics, 2008.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..