APA

Valleroy L. A., MacKellar D. A., Karon J. M., Rosen D. H., McFarland W., Shehan D. A., Stoyanoff S. R., LaLota M., Celentano D. D., Koblin B. A., Thiede H., Katz M. H., Torian L. V. & Janssen R. S. (20000725). HIV prevalence and associated risks in young men who have sex with men. Young Men's Survey Study Group. : JAMA.

Chicago

Valleroy L A, MacKellar D A, Karon J M, Rosen D H, McFarland W, Shehan D A, Stoyanoff S R, LaLota M, Celentano D D, Koblin B A, Thiede H, Katz M H, Torian L V and Janssen R S. 20000725. HIV prevalence and associated risks in young men who have sex with men. Young Men's Survey Study Group. : JAMA.

Harvard

Valleroy L. A., MacKellar D. A., Karon J. M., Rosen D. H., McFarland W., Shehan D. A., Stoyanoff S. R., LaLota M., Celentano D. D., Koblin B. A., Thiede H., Katz M. H., Torian L. V. and Janssen R. S. (20000725). HIV prevalence and associated risks in young men who have sex with men. Young Men's Survey Study Group. : JAMA.

MLA

Valleroy L A, MacKellar D A, Karon J M, Rosen D H, McFarland W, Shehan D A, Stoyanoff S R, LaLota M, Celentano D D, Koblin B A, Thiede H, Katz M H, Torian L V and Janssen R S. HIV prevalence and associated risks in young men who have sex with men. Young Men's Survey Study Group. : JAMA. 20000725.