World health Organization UNICEF. (2000). Global water supply and sanitation assessment 2000 report. World HealthOrganization.
Citazione stile Chigago Style (17a edizione)World health Organization UNICEF. Global Water Supply and Sanitation Assessment 2000 Report. United States of America: World HealthOrganization, 2000.
Citatione MLA (8a ed.)World health Organization UNICEF. Global Water Supply and Sanitation Assessment 2000 Report. World HealthOrganization, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.