Copper cables / 
Copper Development Association. 
 - London :  Copper Development Association,  1959. 
 - viii, 63 p. :  ill. ;  21 cm. 
 - Copper Development Association publication ; no. 56 .
<br/><br/>Bibliography : p. 57 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cables.<br/>Electric cables.