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020 _a81-7446-340-2
035 _a41646
082 _a910.0923
_BUBE
100 _aUberoi, N. K.
245 0 _aEnvironmental Management
250 _a2nd
260 _aN. Delhi
_bExcel Books
300 _a414
500 _a1015
650 _aEnvironmental Science
942 _cBK
999 _c43696
_d43696