Guidelines for drinking water quality / 
Organización Mundial de la Salud 
 - Ginebra :  OMS,  1984 
 - v. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua potable<br/>Agua--Análisis
<br/><br/><label>Dewey Class. No.: </label>628.16  / Or14gu 
<br/><br/><label>National Library of Medicine Call No.: </label>WA675