World health Organization  <br/><br/>
Guidelines for drinking water 

 - 2nd 
 - Delhi  A.I.T.B.S PUBLIS 
 - xii,238p.  ill. 
<br/><br/><label>ISBN: </label>8185386404 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drinking water- standards-handbooks manuals--water quality- handbooks manuals
<br/><br/><label>LC Class. No.: </label>TD215  / .W67