World Health Organization. (2006). Preventing HIV/AIDS in Young people. World health Organization.
Chicago-referens (17:e uppl.)World Health Organization. Preventing HIV/AIDS in Young People. Ginebra: World health Organization, 2006.
MLA-referens (9:e uppl.)World Health Organization. Preventing HIV/AIDS in Young People. World health Organization, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.