000 00274nam a22001217a 4500
999 _c1599
_d1599
020 _a9788190851299
082 _a551.4801
100 _aB Gurugnanam
245 _aEssentials of hydrology
260 _aNew Delhi
_bNew India Pub. Agency
_c2009
300 _a268
942 _cBK
_01