000 00291nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
082 _aGZ P7
100 _aSivashanmugam (P)
245 0 _aBasics of Environmental Science and Engineering
260 _c2007
365 _b395
942 _cBK
999 _c132541
_d132541