Community water supply :   report of a WHO Expert Committee. 

 - Geneva :   World Health Organization,   1969. 
 - 24 p. ;   24 cm.  
 - Technical report series, 420.  .
<br/><br/>300  300 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply. 
<br/><br/><label>Dewey Class. No.: </label>363.61 / W893c