Waste water treatment and reuse in a metal finishing job shop / 
by S. K. Williams 
 - Washington, D.C. :  U.S. Environmental Protection Agency,  1974 
 - viii, 59 p. :  ill. ;  28 cm. 
 - Environmental Protection Technology Series ;  no.EPA-670/2-74-042 .
<br/><br/> July 1974 
<br/><br/><label>Subjects--Topical Terms: </label><br/>wastewater<br/>Sewage sludge
<br/><br/><label>Dewey Class. No.: </label>363.7284