Copper through the ages. 

 - Radlett, Herts :  Copper Development Association,  1951. 
 - 66 p. :  ill., map 
<br/><br/>Bibliography: p. 62-64 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copper industry and trade.<br/>Copper--History.
<br/><br/><label>Dewey Class. No.: </label>669.3