World Health Organization. (1999). The role of public policy in prevention and control of sexually transmitted infections. World Health Organization.
Chicago-viite (17. p.)World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. Geneva, Switzerland: World Health Organization, 1999.
MLA-viite (8. p.)World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. World Health Organization, 1999.
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