Ramalho, R.S. <br/><br/>
Introduction to wastewater treatment processes 

 - New York  Academic Press  1977 
 - vii,409p.  23cm. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>sewage Treatment<br/>Wastewater treatment<br/>Sewage-purification
<br/><br/><label>Dewey Class. No.: </label>628.3  / R16I