000 00290nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Hammer, M.J."
245 0 _aWater and wastewater yechnology
260 _bPHI Learning Pvt. Ltd
260 _c2002
365 _b350.00
942 _cBK
999 _c141355
_d141355