Herfindahl, Orris C. <br/><br/>
Copper costs and prices: 1870-1957 / 
Orris C. Herfindahl 
 - Baltimore :  Johns Hopkins Press,  1959 
 - xi, 260p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources<br/>United States<br/>Copper industry and trade<br/>Minerals
<br/><br/><label>Dewey Class. No.: </label>553.1  / HER