000 00330nam a2200145Ia 4500
003 OSt
008 181001s2018 xx 000 0 und d
082 _a628
_bKAU
100 _aKaushik, A.
245 0 _aEnviromental studies
250 _a3rd
260 _bPearson Education,
_aNew Delhi:
650 _aHumanities
942 _2ddc
_cBK
999 _c4289
_d4289