Maier, Walter J. <br/><br/>
Biological removal of colloidal matter from wastewater / 1973 
by Walter J. Maier 
 - Washington, D.C. :  United States Environmental Protection Agency,  1973 
 - xi, 166 p. :  ill.,  29 cm. 
 - Environmental protection technology series .
<br/><br/> EPA-R2-73-147 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>wastewater<br/>Pollution
<br/><br/><label>Dewey Class. No.: </label>363.7284