000 00349nam a2200145Ia 4500
008 220601s2017 xx 000 0 eng d
020 _qPB
041 _aEnglish
082 _a333.7
_bCHA Q7
100 _aChaturvedi, D.D.
245 0 _aEnvironmental studies
260 _bScholar Tech Press
_c2017
650 _aEnviornment
942 _2ddc
_cBK
_037
999 _c25123
_d25123