000 00281nam a2200121Ia 4500
008 220201s1977 xx 000 0 eng d
082 _a627
_bVAR
100 _aVarshney, RS
245 0 _aEngineering hydrology
260 _bRoorkee: Nem Chand
_c1977
300 _a837
942 _2ddc
999 _c80713
_d80713