Bacteriological examination of water supplies 
by Ministry of Health 
 - London  Her Mjesty's Stationery Office  1957 
 - viii,52p. 
<br/><br/> Report on public health and medical subjects no.71 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water -- Microbiology
<br/><br/><label>Dewey Class. No.: </label>V442x42 Un3