000 00317nam a2200121Ia 4500
008 221007s9999 xx 000 0 und d
100 _aVarshney R.C
245 0 _aWater Resources Systems : Planning & Economics
250 _a3rd
260 _aNemchand, Roorkee
_bNemchand, Roorkee
_c2013
300 _a315
942 _cBK
999 _c3237
_d3237