Usán, P., & Salavera, C. (2017). Influence of motivation towards sports in alcohol, tobacco and cannabis consumption in adolescent students.
استشهاد بنمط شيكاغوUsán, Pablo, و Carlos Salavera. Influence of Motivation Towards Sports in Alcohol, Tobacco and Cannabis Consumption in Adolescent Students. 2017.
MLA استشهادUsán, Pablo, و Carlos Salavera. Influence of Motivation Towards Sports in Alcohol, Tobacco and Cannabis Consumption in Adolescent Students. 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.