Hassler, John W., <br/><br/>
Purification with Activated Carbon :  industrial, commercial, environment / 
by John W. Hassler 
 - New York :  Chemical Publishing,  1974 
 - 390 p. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Activated carbon treatment