APA ציטוט

Cheng, W. S., Garfein, R. S., Semple, S. J., Strathdee, S. A., Zians, J. K., & Patterson, T. L. (2009). Differences in Sexual Risk Behaviors among Male and Female HIV-Seronegative Heterosexual Methamphetamine Users.

Citação norma Chicago

Cheng, W. Susan, Richard S. Garfein, Shirley J. Semple, Steffanie A. Strathdee, James K. Zians, and Thomas L. Patterson. Differences in Sexual Risk Behaviors Among Male and Female HIV-Seronegative Heterosexual Methamphetamine Users. 2009.

ציטוט MLA

Cheng, W. Susan, et al. Differences in Sexual Risk Behaviors Among Male and Female HIV-Seronegative Heterosexual Methamphetamine Users. 2009.