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040 _e85088
_aMAIN
041 _aEnglish
082 _a363.7 G96T
100 _aGurcharan Singh
245 0 _aTopics and terms in environmental sciences, vol 2
260 _aNew Delhi
_bCommonwealth
_c1992
300 _aix, 367 to 672 p.
942 _cBK
999 _c89944
_d89944