000 00290nam a2200109Ia 4500
008 160710s1981 xx 000 0 und d
100 _aCOPPER, P F
245 _aBIOLOGICAL FLUIDISED BED TREATMENT OF WATER AND WASTE WATER
260 _bELLIS HOWARD
_c1981
300 _a411
942 _2ddc
_cB
999 _c44461
_d44461