Proceedings :  WEFTEC '94, 67th Annual Conference and Exposition 

 - volúmenes 
<br/><br/><label>ISBN: </label>1881369749 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aguas residuales--Purificación--Congresos
<br/><br/><label>LC Class. No.: </label>TD745  / W369 1994