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020 _a9789382609667
040 _aUPES LIBRARY
_bEnglish
082 _a628.168
_bGUP
100 _aGupta, Om Prakash
_946257
245 0 _aElements of environmental pollution control
260 _aNew Delhi :
_bKhanna Book,
_c2016
300 _axiii, 858p.
500 _aReprint 2019
650 _aEnvironmental Engineering
_9380493
942 _cBK