00422cam a22001217a 4500008004000000082001600040245007300056260004900129300001400178500005500192650002600247700002700273180718b1957   xxu||||| |||| 00| 0 eng d  aV442x42 Un3  aBacteriological examination of water suppliescby Ministry of Health  aLondonbHer Mjesty's Stationery Officec1957  aviii,52p.  aReport on public health and medical subjects no.71  aWater -- Microbiology  aU.K.Ministry of Health