000 00267nam a22001097a 4500
082 _a614
_bEHL
100 _aEhlers
245 _aMunicipal and rural sanitation
_cVictor M.Ehlers
260 _aNew york
_bMcgraw hill book company inc
_c1958
300 _a595
942 _cBK
999 _c16027
_d16027