Sousa, Louis J. <br/><br/>
The U.S. copper industry :  problems, issues and outlook / 
by Louis J. Sousa 
 - Washington :  U.S. Dept. of the interior.  1981 
 - vi, 86 p. :  28 cm. 
 - Mineral issues .
<br/><br/> "October 1981." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copper industry and trade--United States
<br/><br/><label>Dewey Class. No.: </label>US 338.4767330973  / So 85 (Oct./1981)