UNAIDS. (2002). HIV/AIDS counselling, just a phone call away: Four case studies of telephone hotline/helpline projects. UNAIDS.
Citazione stile Chigago Style (17a edizione)UNAIDS. HIV/AIDS Counselling, Just a Phone Call Away: Four Case Studies of Telephone Hotline/helpline Projects. Geneva: UNAIDS, 2002.
Citatione MLA (8a ed.)UNAIDS. HIV/AIDS Counselling, Just a Phone Call Away: Four Case Studies of Telephone Hotline/helpline Projects. UNAIDS, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.