World Health Organization. (1999). The role of public policy in prevention and control of sexually transmitted infections. World Health Organization.
芝加哥风格引文World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. Geneva, Switzerland: World Health Organization, 1999.
MLA引文World Health Organization. The Role of Public Policy in Prevention and Control of Sexually Transmitted Infections. World Health Organization, 1999.
警告：这些引文格式不一定是100％准确.