World Health Organization  <br/><br/>
Guidelines for drinking-water quality   

 - 2nd 
 - Geneva  W H O  1998 
 - 283 p.  25 cm. 
 -   .
<br/><br/>  
<br/><br/>  Water, Drinking Water 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drinking Water<br/>Water
<br/><br/><label>Dewey Class. No.: </label>WA690  / WHO