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020 _a8121927641
040 _aMA
041 _aEnglish
082 _a333.714
_bAS
100 _aAsthana, D K
_eAu
700 _aAsthana,Meera
_eAu
245 _aTextbook Of Environmental Studies
_bUndergraduate Students
250 _a2
260 _c2012
_a New Delhi
_bS Chand & Company
300 _a397
650 _aEnvironmental Studies
650 _a Environmental Science
490 _v
942 _cBK
999 _c61547
_d61547