World Health Organization. (2002). Young people and HIV/AIDS: Opportunity in crisis. World Health Organization UNICEF : UNAIDS.
Chicago Style aipamenaWorld Health Organization. Young People and HIV/AIDS: Opportunity in Crisis. Geneva: World Health Organization UNICEF : UNAIDS, 2002.
MLA aipamenaWorld Health Organization. Young People and HIV/AIDS: Opportunity in Crisis. World Health Organization UNICEF : UNAIDS, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.