Upgrading of wastewater treatment plants :  Proceedings of the iawprc international specialized conference / 
Eds. w. hegemann, w. bischofsberger and e. englmann 
 - 324 páginas 
<br/><br/><label>ISBN: </label>0080407773 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas depuradoras de agua--Congresos
<br/><br/><label>LC Class. No.: </label>TD746  / I58 1989