Water treatment plant operation 
California State University 
 - Tercera ed. 
 - 2 volúmenes 
<br/><br/><label>ISBN: </label>1884701140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua--tratamiento
<br/><br/><label>Dewey Class. No.: </label>628.06  / CAL 1994