World Health Organization <br/><br/>
Guidelines for drinking-water quality 
World Health Organization 
 - 2nd ed. 
 - Geneva  World Health Organization  1997 
 - volume 3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drinking water
<br/><br/><label>Dewey Class. No.: </label>363.61  / WOG