Ream, G. L., Dunlap, E., Johnson, B. D., & Benoit, E. (2008). Smoking tobacco along with marijuana increases symptoms of cannabis dependence. Drug and alcohol dependence, 95(3), 199-208. doi:10.1016/j.drugalcdep.2008.01.011
Chicago Style (17th ed.) CitationReam, Geoffrey L., Eloise Dunlap, Bruce D. Johnson, and Ellen Benoit. "Smoking Tobacco Along with Marijuana Increases Symptoms of Cannabis Dependence." Drug and Alcohol Dependence 95, no. 3 (2008): 199-208. https://doi.org/10.1016/j.drugalcdep.2008.01.011.
MLA (9th ed.) CitationReam, Geoffrey L., et al. "Smoking Tobacco Along with Marijuana Increases Symptoms of Cannabis Dependence." Drug and Alcohol Dependence, vol. 95, no. 3, 2008, pp. 199-208, https://doi.org/10.1016/j.drugalcdep.2008.01.011.
Warning: These citations may not always be 100% accurate.