000 00383nam a2200169Ia 4500
100 _aPandey G N and Carneyy G C
650 _aEngineering
365 _cRS
365 _d1
942 _cDENGBK
654 _aEnvironmental
654 _aEngineering
654 _aEngineering
245 _aEnvironmental Engineering
260 _bMC Grawhill
_c1991
_aNew delhi
300 _aix+455p.
999 _c6703
_d6703