TY - BOOK AU - Hexem, Roger W. TI - Water production functions for irrigated agriculture U1 - 330.19:631.675:519.2 L8 PY - 1978/// CY - Iowa PB - Iowa State University Press KW - Roger W.Hexem and Earl O.Heady. KW - Heady, Earl O. KW - Irrigated farming-economic aspects-Mathematical models,Irrigated farming-economic aspects-the west,Production functions(Economic theory) ER -