000			00516nam a2200157 a 4500
001			000891215
005			20170508010437.0
008			120515s1976 r 000 0 eng d
041	0		_aeng
245	0	0	_aOperation of Wastewater Treatment Plants/ : _bManual of Practice N 11 / _cTechnical Practice Committee.
260			_aLancaster, Pa. : _bLancaster Press, _c1976.
300			_a536 p. : _bfig., tables.
504			_aIncludes Index.
650	1	4	_aEnvironmental Engineering
710	1		_aTechnical Practice Committee
999			_c793809 _d793809