000 00330nam a2200133Ia 4500
008 191201s2019 xx 000 0 und d
082 _a333.7 SIT
100 _aSINHA, Sharda
245 0 _aTextbook of Environmental Studies
260 _bAITBS Pub.
_aNew Delhi
_c2019
300 _aMisc.
650 _aEnvironment
942 _2ddc
_cBK
999 _c8405
_d8405