World Health Organization. (2002). Young people and HIV/AIDS: Opportunity in crisis. World Health Organization UNICEF : UNAIDS.
芝加哥风格引文World Health Organization. Young People and HIV/AIDS: Opportunity in Crisis. Geneva: World Health Organization UNICEF : UNAIDS, 2002.
MLA引文World Health Organization. Young People and HIV/AIDS: Opportunity in Crisis. World Health Organization UNICEF : UNAIDS, 2002.
警告：这些引文格式不一定是100％准确.