World Health Organization. (2000). Promoting condoms in clinic for sexually transmitted infections. World Health Organization.
芝加哥风格引文World Health Organization. Promoting Condoms in Clinic for Sexually Transmitted Infections. Manila, Philippines: World Health Organization, 2000.
MLA引文World Health Organization. Promoting Condoms in Clinic for Sexually Transmitted Infections. World Health Organization, 2000.
警告：这些引文格式不一定是100％准确.