000 00326nam a2200133Ia 4500
008 140317s9999 xx 000 0 und d
082 _a551.48
100 _aNational Instt. of Hydrology,Roorkee
245 _aDrainage manual.
260 _aRoorkee
_bNIH}
_c1995-96
300 _a214
653 _aHydrology
942 _2ddc
_cBK
999 _c13896
_d13896