000 00330nam a22001097a 4500
999 _c331516
_d331516
020 _a0074517082
082 _a628
_bKAM
100 _a Kamala, A
245 _aEnvironmental engineering :
_b water supply, sanitary engineering and pollution
_c Kamala, A and Kantha Rao
260 _aNew Delhi:
_bTata McGraw Hill,
_c1988.
942 _cBK