000 | 004630000a22001810004500 | ||
---|---|---|---|
020 | _a0-8138-1785-4 | ||
060 | _a100 | ||
082 | _a333.913 HEX | ||
100 | _aHeady, Earl O | ||
100 | _aHexen, Roger W | ||
245 | _aWater production functions for irrigated agriculture | ||
260 | _aIowa, Iowa State University Press | ||
260 | _c1978 | ||
300 | _a215 | ||
461 | _a | ||
650 | _aIrrigated farming economic aspects mathematical models | ||
942 | _cBK | ||
999 |
_c213862 _d213862 |