000 00500nam a2200193Ia 4500
005 20250220125348.0
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020 _c20
040 _aMAIN
041 _aEnglish
082 _a628
_bPUN
100 _aPunmia, B. C.
245 _aEnvironmental engineering
_b: water supply engineering
260 _aDelhi
_b; Standard Book House
_c, 1979
300 _aix,471p.
_b, V.1
650 _aEngineering
650 _aEnvironmental Engineering
942 _cBK
999 _c28727
_d28727