World Health Organization. (1999). The role of public policy in prevention and control of sexually transmitted infections. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. Geneva, Switzerland: World Health Organization, 1999.
MLA-Zitierstil (8. Ausg.)World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. World Health Organization, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.