Murphy, Thomas J. <br/><br/>
Polychlorinated biphenyls in precipitation in the Lake Michigan basin / 
by Thomas J. Murphy [and] Charles P. Rzerzutko 
 - Washington, D.C. :  U.S. Government Printing Office,  1978 
 - vi, 33 p. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--United States<br/>Water quality--Standards--United States<br/>Water--Dissolved oxygen--United States
<br/><br/><label>Dewey Class. No.: </label>363.72870973