000			00277nam a2200133Ia 4500
654			_aCIVI
100			_aImhoff & Fair.
250			_a2nd Ed.
245			_aSewage Treatment.(1956).
260			_bJWS _c1960
082			_bIMH _a25D-192
300			_a338p.
999			_c30791 _d30791
655			_aC-12
546			_aText in English
041			_aeng
300			_c22 cm.