Citazione Stile APA (7a Edizione)

World Health Organization. (2001). Sexually transmitted infections: Briefing kit for teachers. World Health Organization.

Citazione stile Chigago Style (17a edizione)

World Health Organization. Sexually Transmitted Infections: Briefing Kit for Teachers. Manila, Philippines: World Health Organization, 2001.

Citatione MLA (8a ed.)

World Health Organization. Sexually Transmitted Infections: Briefing Kit for Teachers. World Health Organization, 2001.