APA (7th ed.) Citation

SA, A., DA, R., KR, E., & DJ, C. (2008). Urban containment policies and physical activity. A time-series analysis of metropolitan areas, 1990-2002. American Journal of Preventive Medicine, 34(4), 320. https://doi.org/10.1016/j.amepre.2008.01.018

Chicago Style (17th ed.) Citation

SA, Aytur, Rodriguez DA, Evenson KR, and Catellier DJ. "Urban Containment Policies and Physical Activity. A Time-series Analysis of Metropolitan Areas, 1990-2002." American Journal of Preventive Medicine 34, no. 4 (2008): 320. https://doi.org/10.1016/j.amepre.2008.01.018.

MLA (9th ed.) Citation

SA, Aytur, et al. "Urban Containment Policies and Physical Activity. A Time-series Analysis of Metropolitan Areas, 1990-2002." American Journal of Preventive Medicine, vol. 34, no. 4, 2008, p. 320, https://doi.org/10.1016/j.amepre.2008.01.018.