AU - Seckler, D. AU - Amarasinghe, U. AU - Molden, D. AU - De Silva, R. AU - Barker, R. ED - TI - World water demand and supply, 1990 to 2025: scenarios and issues SN - 9290903546 PY - 1998/// CY - International Water Management Institute PB - Colombo KW - Engineering and Technology ER -