Leatherdale, S. T., Faulkner, G., & Arbour-Nicitopoulos, K. (2010). School and Student Characteristics Associated With Screen-Time Sedentary Behavior Among Students in Grades 5-8, Ontario, Canada, 2007-2008. Centers for Disease Control and Prevention.
Citação norma ChicagoLeatherdale, Scott T., Guy Faulkner, and Kelly Arbour-Nicitopoulos. School and Student Characteristics Associated With Screen-Time Sedentary Behavior Among Students in Grades 5-8, Ontario, Canada, 2007-2008. Centers for Disease Control and Prevention, 2010.
ציטוט MLALeatherdale, Scott T., Guy Faulkner, and Kelly Arbour-Nicitopoulos. School and Student Characteristics Associated With Screen-Time Sedentary Behavior Among Students in Grades 5-8, Ontario, Canada, 2007-2008. Centers for Disease Control and Prevention, 2010.