Warren, S. D. <br/><br/>
Studge material recovery system for manufactures of pigmental papers / 
by S. D. Warren 
 - Washington, D.C. :  United State Environmental Protection Agency,  1971 
 - 95 p. ;  29 cm. 
 - Water pollution control research series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--United States<br/>Water--Purification--United States
<br/><br/><label>Dewey Class. No.: </label>628.1680973