APA (7th ed.) Citation

Marcus Ulrich, Schmidt Axel J, Hamouda Osamah, & Bochow Michael. (2009). Estimating the regional distribution of men who have sex with men (MSM) based on Internet surveys. BMC.

Chicago Style (17th ed.) Citation

Marcus Ulrich, Schmidt Axel J, Hamouda Osamah, and Bochow Michael. Estimating the Regional Distribution of Men Who Have Sex with Men (MSM) Based on Internet Surveys. BMC, 2009.

MLA (9th ed.) Citation

Marcus Ulrich, et al. Estimating the Regional Distribution of Men Who Have Sex with Men (MSM) Based on Internet Surveys. BMC, 2009.