APA

Zheng J., Wu Z., Poundstone K. E., Pang L. & Rou K. (20120509). HIV, syphilis infection, and risky sexual behaviors among male university students who have sex with men in Beijing, China: a cross-sectional study. : AIDS education and prevention : official publication of the International Society for AIDS Education.

Chicago

Zheng Jiandong, Wu Zunyou, Poundstone Katharine E, Pang Lin and Rou Keming. 20120509. HIV, syphilis infection, and risky sexual behaviors among male university students who have sex with men in Beijing, China: a cross-sectional study. : AIDS education and prevention : official publication of the International Society for AIDS Education.

Harvard

Zheng J., Wu Z., Poundstone K. E., Pang L. and Rou K. (20120509). HIV, syphilis infection, and risky sexual behaviors among male university students who have sex with men in Beijing, China: a cross-sectional study. : AIDS education and prevention : official publication of the International Society for AIDS Education.

MLA

Zheng Jiandong, Wu Zunyou, Poundstone Katharine E, Pang Lin and Rou Keming. HIV, syphilis infection, and risky sexual behaviors among male university students who have sex with men in Beijing, China: a cross-sectional study. : AIDS education and prevention : official publication of the International Society for AIDS Education. 20120509.