000 00381nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
245 _aPump irrigation....cost analysis
260 _aNebraska
260 _bNebraska Cooperative Extension Service
260 _c1964
300 _a0.916666667
440 _aNo. 64-733; Nebraska, Cooperat
901 _pS17720
942 _cB
_2udc
999 _c131028
_d131028