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003 OSt
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020 _a978939083152
040 _aMAIN
_cDDUCL
041 _aEnglish
082 _a363.7071154 BAT P21
100 _aBatra, Sanjay Kumar
245 0 _aEnvironmental studies/
_cSanjay Kumar Batra ... [et al.]
250 _a5th
260 _aNew Delhi
_bTaxmann Pub.
_c2021
300 _a365
500 _aIncludes index
650 _aEcology-Environmental aspects
650 _aEnvironment
650 _aEnvironmental-Study and teaching
700 _aBatra, Sanjay Kumar
942 _cBK
_2ddc
999 _c7312
_d7312