TY - BOOK AU - Haxem, Roger W. AU - Heady, Earl O. TI - Water production functions for irrigated agriculture SN - 0813817854 U1 - 333.9130978 PY - 1978/// CY - Ames, Iowa PB - Iowa State University Press KW - Irrigation farming - Economic aspects - Mathematical models KW - Irrigation farming - Economic aspects - The West - Mathematical models KW - Production functions (Economic theory) ER -