000 00231nam a2200097 4500
999 _c337331
_d337331
082 _a551.49
_bRAM.G;1
100 _aRamakrishanan,S
245 _aGroundwater
_cRamakrishanan,S
260 _aChennai
_c1998
_bS.Ramakrishnan
942 _cBK