TY - BOOK AU - De Ridder, N. A. AU - Erez, A. TI - Optimum use of water resources U1 - 333.91 PY - 1977/// CY - Wageningen PB - International Inst. for Land Reclamat KW - Water-supply--Mathematical models KW - Water-supply--Simulation methods KW - Iran KW - Irrigation--Mathematical models N1 - ENG ER -