Cita APA

Semple, S. J., Strathdee, S. A., Zians, J., & Patterson, T. L. (2010). Life events and sexual risk among HIV-negative heterosexual methamphetamine users.

Citación estilo Chicago

Semple, Shirley J., Steffanie A. Strathdee, Jim Zians, y Thomas L. Patterson. Life Events and Sexual Risk Among HIV-negative Heterosexual Methamphetamine Users. 2010.

Cita MLA

Semple, Shirley J., Steffanie A. Strathdee, Jim Zians, y Thomas L. Patterson. Life Events and Sexual Risk Among HIV-negative Heterosexual Methamphetamine Users. 2010.