APA (7th ed.) Citation

GL, H., & AL, H. (2004). Is marijuana use becoming a 'gateway' to nicotine dependence? Addiction, 99(1), 5. https://doi.org/10.1111/j.1360-0443.2004.00596.x

Chicago Style (17th ed.) Citation

GL, Humfleet, and Haas AL. "Is Marijuana Use Becoming a 'Gateway' to Nicotine Dependence?" Addiction 99, no. 1 (2004): 5. https://doi.org/10.1111/j.1360-0443.2004.00596.x.

MLA (9th ed.) Citation

GL, Humfleet, and Haas AL. "Is Marijuana Use Becoming a 'Gateway' to Nicotine Dependence?" Addiction, vol. 99, no. 1, 2004, p. 5, https://doi.org/10.1111/j.1360-0443.2004.00596.x.