000 00312nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c100/-
040 _aET
100 _aGUPTA B.L
245 0 _aENGINEERNING HYDROLOGY
260 _bSTANDARD PUB.
_aDELHI
300 _a380
500 _a36879
942 _cBK
999 _c42894
_d42894