APA (7th ed.) Citation

Wall, M. M., Hasin, D. S., Galea, S., Keyes, K. M., Cerdá, M., & Poh, E. (2011). Adolescent marijuana use from 2002 to 2008: Higher in states with medical marijuana laws, cause still unclear. Annals of epidemiology, 21(9), 714-717. doi:10.1016/j.annepidem.2011.06.001

Chicago Style (17th ed.) Citation

Wall, Melanie M., Deborah S. Hasin, Sandro Galea, Katherine M. Keyes, Magdalena Cerdá, and Ernest Poh. "Adolescent Marijuana Use from 2002 to 2008: Higher in States with Medical Marijuana Laws, Cause Still Unclear." Annals of Epidemiology 21, no. 9 (2011): 714-717. https://doi.org/10.1016/j.annepidem.2011.06.001.

MLA (9th ed.) Citation

Wall, Melanie M., et al. "Adolescent Marijuana Use from 2002 to 2008: Higher in States with Medical Marijuana Laws, Cause Still Unclear." Annals of Epidemiology, vol. 21, no. 9, 2011, pp. 714-717, https://doi.org/10.1016/j.annepidem.2011.06.001.