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020 _a8170993768
_c495
040 _aMAIN
041 _aEnglish
082 _a577.03
_bSWA
100 _aSwarup, R., Mishra, S.N. and Jauhari, V.P.
245 _aEncyclopaedia of ecology , environment and pollution control
_benvironmental problems and global imperatives
260 _aNew Delhi
_bMittal publications
_c1992
300 _a375p.
_bV.16
650 _aEcology & environment-encyclopaedia
650 _aEncyclopaedia
942 _cBK
999 _c27944
_d27944