United Nations. Department of Economic and Social Affairs. Triennial report on water resources development. [s.n.].
Citazione stile Chigago Style (17a edizione)United Nations. Department of Economic and Social Affairs. Triennial Report on Water Resources Development. New York: [s.n.].
Citatione MLA (9a ed.)United Nations. Department of Economic and Social Affairs. Triennial Report on Water Resources Development. [s.n.].
Attenzione: Queste citazioni potrebbero non essere precise al 100%.