000			00446nam a2200193Ia 4500
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020			_c20
040			_aMAIN
041			_aEnglish
082			_a577.4 _bKRI
100			_aKrishnan, V. V.
245		0	_aSurvey of the environment 1991
260			_aLondon _b; The Hindu _c, 1991
300			_a173p.
650			_aEcology
650			_aEnvironment
942			_cBK
999			_c121602 _d121602