000 00268nam a2200121Ia 4500
008 191201s2019 xx 000 0 und d
100 _aPOONIA, MP
245 0 _aEnvironmental Studies
260 _bKhanna Pub
_c2019
300 _a438
650 _aMCA
942 _2ddc
_cBK
999 _c6813
_d6813