World Health Organization. (1999). Sexually transmitted infections prevalence study methodology. World Health Organization.
Chicagoスタイル(17版)引用形式World Health Organization. Sexually Transmitted Infections Prevalence Study Methodology. Geneva,Switzerland: World Health Organization, 1999.
MLA(8版)引用形式World Health Organization. Sexually Transmitted Infections Prevalence Study Methodology. World Health Organization, 1999.
警告: この引用は必ずしも正確ではありません.