CDA (Copper Development Association) <br/><br/>
Copper, its ores, mining and extraction 
Copper Development Association 
 - London:  CDA;  1957 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copper--Metallurgy--ME
<br/><br/><label>Dewey Class. No.: </label>669.3 CDA