APA (7th ed.) Citation

GL, H., K, D., K, K., SM, H., J, D., & G, H. (2009). Characteristics of HIV-positive cigarette smokers: A sample of smokers facing multiple challenges. AIDS education and prevention : official publication of the International Society for AIDS Education, 21(3 Suppl), 54. https://doi.org/10.1521/aeap.2009.21.3_supp.54

Chicago Style (17th ed.) Citation

GL, Humfleet, Delucchi K, Kelley K, Hall SM, Dilley J, and Harrison G. "Characteristics of HIV-positive Cigarette Smokers: A Sample of Smokers Facing Multiple Challenges." AIDS Education and Prevention : Official Publication of the International Society for AIDS Education 21, no. 3 Suppl (2009): 54. https://doi.org/10.1521/aeap.2009.21.3_supp.54.

MLA (9th ed.) Citation

GL, Humfleet, et al. "Characteristics of HIV-positive Cigarette Smokers: A Sample of Smokers Facing Multiple Challenges." AIDS Education and Prevention : Official Publication of the International Society for AIDS Education, vol. 21, no. 3 Suppl, 2009, p. 54, https://doi.org/10.1521/aeap.2009.21.3_supp.54.