000 00284nam a2200121Ia 4500
008 221219s9999 xx 000 0 und d
100 _aG.Das
245 0 _aHydrology & Soil Conservation Engineering
250 _a2nd
260 _bPHI
650 _aAgri.Engineering
942 _cBK
_01
999 _c3461
_d3461