Pacek, L. R., Goodwin, R. D., Martins, S. S., Cunningham, C. O., Dierker, L., & Copeland, J. (2018). Among whom is cigarette smoking declining in the United States? The impact of cannabis use status, 2002-2015. Drug and alcohol dependence, 191(1), 355-360. doi:10.1016/j.drugalcdep.2018.01.040
Cita Chicago Style (17a ed.)Pacek, Lauren R., Renee D. Goodwin, Silvia S. Martins, Chinazo O. Cunningham, Lisa Dierker, y Jan Copeland. "Among Whom Is Cigarette Smoking Declining in the United States? The Impact of Cannabis Use Status, 2002-2015." Drug and Alcohol Dependence 191, no. 1 (2018): 355-360. https://doi.org/10.1016/j.drugalcdep.2018.01.040.
Cita MLA (9a ed.)Pacek, Lauren R., et al. "Among Whom Is Cigarette Smoking Declining in the United States? The Impact of Cannabis Use Status, 2002-2015." Drug and Alcohol Dependence, vol. 191, no. 1, 2018, pp. 355-360, https://doi.org/10.1016/j.drugalcdep.2018.01.040.