000 00254nam a2200109Ia 4500
008 161118s2016 xx 000 0 und d
100 _aTyagi, N.K.
245 0 _aManagement of Irrigation Systam
260 _bCSSRI
_c1990
300 _a325p.
942 _2ddc
999 _c23798
_d23798