Cita APA

Springer, A. E., Hoelscher, D. M., Kelder, S. H., Castrucci, B., & Perez, A. (2008). Prevalence of Physical Activity and Sedentary Behaviors by Metropolitan Status in 4th-, 8th-, and 11th-Grade Students in Texas, 2004-2005. Centers for Disease Control and Prevention.

Chicago Style Citation

Springer, Andrew E., Deanna M. Hoelscher, Steven H. Kelder, Brian Castrucci, i Adriana Perez. Prevalence of Physical Activity and Sedentary Behaviors By Metropolitan Status in 4th-, 8th-, and 11th-Grade Students in Texas, 2004-2005. Centers for Disease Control and Prevention, 2008.

Cita MLA

Springer, Andrew E., et al. Prevalence of Physical Activity and Sedentary Behaviors By Metropolitan Status in 4th-, 8th-, and 11th-Grade Students in Texas, 2004-2005. Centers for Disease Control and Prevention, 2008.