000 00353nam a2200145Ia 4500
008 220204s9999 xx 000 0 und d
020 _a9789386479808
082 _a615.5
_bDat-I
100 _aDattak. Amal
245 0 _aIntro to Environmental Science & Engineering
250 _a2ND
260 _aDelhi
_bMEDTECH
_c2018
300 _a186
942 _cBK
999 _c33791
_d33791