000 00281nam a2200121Ia 4500
999 _c2424
_d2424
100 _aVictor M Ehlers
245 _aMunicipal and Rural Sanitation
250 _a5
260 _c1958
_aNew York
_bMcGraw Hill Book Company
300 _axii+596
700 _aErnest W Steel
942 _cBK