000			00299 a2200133 4500
008			160427b1950 xxu||||| |||| 00| 0 eng d
041			_aeng
080			_a628.75 _bE4
942			_cBK _01
100			_aEhlers, V.M.
700			_aSteel,E.W.
245			_aMunicipal and rural sanitation
260			_c1950
999			_c8047 _d8047