Copper and copper alloy springs. 

 - London :  Copper Development Association,  1956. 
 - 65 p. :  ill. ;  22 cm. 
 - Its C.D.A publication ;  no.39 .
<br/><br/>Includes bibliographical references (p. 59-61) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Springs (Mechanism).
<br/><br/><label>Dewey Class. No.: </label>P 621.82 C66