Validity of a physical activity computer questionnaire in 12- to 18-year-old boys and girls.

MLA

Philippaerts, R. M., et al. “Validity of a Physical Activity Computer Questionnaire in 12- to 18-Year-Old Boys and Girls.” International Journal of Sports Medicine, vol. 27, no. 2, Feb. 2006, pp. 131–36. EBSCOhost, https://doi.org/10.1055/s-2005-837619.

APA

Philippaerts, R. M., Matton, L., Wijndaele, K., Balduck, A.-L., De Bourdeaudhuij, I., & Lefevre, J. (2006). Validity of a physical activity computer questionnaire in 12- to 18-year-old boys and girls. International Journal of Sports Medicine, 27(2), 131–136. https://doi.org/10.1055/s-2005-837619

Chicago

Philippaerts, R M, L Matton, K Wijndaele, A-L Balduck, I De Bourdeaudhuij, and J Lefevre. 2006. “Validity of a Physical Activity Computer Questionnaire in 12- to 18-Year-Old Boys and Girls.” International Journal of Sports Medicine 27 (2): 131–36. doi:10.1055/s-2005-837619.