World water demand and supply, 1990 to 2025: Scenarios and iáues - Seckler, David; Amarasinghe, Upali; Molden, David; de Silva, Radhika; Barker, Randolph (Colombo (Sri Lanka), 1998)
Ilus.; 30 ref.
Keywords: BALANCE HIDRICO; USO DEL AGUA; AGRICULTURA; RIEGO