Guidelines For Drinking-Water Quality 

 - 2nd ed 
 - India  A.I.T.B.S  1999 
 - 283p. 
<br/><br/> P.B 
<br/><br/><label>ISBN: </label>8185386471 
<br/><br/><label>Dewey Class. No.: </label>363.61 GUI