000 00536nam a2200193Ia 4500
008 170901s1970 xx 000 0 und d
082 _a631.71
_bW56A
100 _aWillrich, Ted. L
245 0 _aAgricultural Practices and Water Quality
250 _a1
260 _aUS
_bThe loes state university Press
_c1970
300 _a415
650 _aAgriculture and related technologies
650 _aTechnology (Applied sciences)
653 _aIrrigation
653 _aWater quality
700 _aSmith, George. E
942 _2ddc
_cBK
999 _c14152
_d14152