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
Chicago Style (17th ed.) CitationPacek, Lauren R., Renee D. Goodwin, Silvia S. Martins, Chinazo O. Cunningham, Lisa Dierker, and 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.
MLA (9th ed.) CitationPacek, 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.