APA (7th ed.) Citation

Salazar Laura F, DiNenno Elizabeth A, Sullivan Patrick S, Rosenberg Eli S, & Sanchez Travis H. (2011). Number of casual male sexual partners and associated factors among men who have sex with men: Results from the National HIV Behavioral Surveillance system. BMC.

Chicago Style (17th ed.) Citation

Salazar Laura F, DiNenno Elizabeth A, Sullivan Patrick S, Rosenberg Eli S, and Sanchez Travis H. Number of Casual Male Sexual Partners and Associated Factors Among Men Who Have Sex with Men: Results from the National HIV Behavioral Surveillance System. BMC, 2011.

MLA (9th ed.) Citation

Salazar Laura F, et al. Number of Casual Male Sexual Partners and Associated Factors Among Men Who Have Sex with Men: Results from the National HIV Behavioral Surveillance System. BMC, 2011.