000			00427nam a2200145Ia 4500
008			170101s1961 xx 000 0 und d
082			_a628.54 R43U
100			_aRich, Linvil G
245		0	_aUnti operations of sanitary engineering
260			_aN.Y _bWiley _c1961
300			_a23cm. 308
650			_aREFUSE AND REFUSE DISPOSAL: CHEMISTRY ,TECHNICAL
653			_aREFUSE AND REFUSE DISPOSAL: CHEMISTRY ,T
942			_2ddc _cB
999			_c21296 _d21296