00310nam a2200121Ia 45000030006000000080041000060400015000471000024000622450049000862600024001355460012001590050017001710STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMinistry of Housing  aBacteriolocial examination of water supplies  bHer majesty,sc1969  aEnglish20220125170355.0