International standards for drinking-water. 

 - 3rd ed. 
 - Geneva :    World Health Organisation :    1971. 
 - 70 p. :    ill. ;    24 cm. 
<br/><br/>Includes bibliographical references (p. 64-67) and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Drinking water -- Standards.
<br/><br/><label>Dewey Class. No.: </label>363.61 WOR