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020 _a9788120338364
041 _aEN
082 _a628
_bNAT
_223
100 _aNathanson,J.A.
245 _aBasic environmental technology
_b: water supply, waste management and pollution control /
_c[by] Jerry A.Nathanson
250 _a5th ed.
260 _aNew Delhi
_bPHI Learning
_c2011
300 _ax, 534 pages.
500 _aInclude index.
509 _aNS
650 _aEnvironmental engineering
650 4 _aGreen technology
_97908
942 _cS