000 00308nam a2200109Ia 4500
008 200302s9999 xx 000 0 und d
100 _aR S Khoiyang bam and Navindu Gupta
245 _aIntroduction to Environmental Sciences
260 _bThe Energy and Resources Institute
260 _c2015
300 _a426 P.,
999 _c4285
_d4285