Non-ferrous metals. 

 - Paris :  OECD ,  1969 
 - 202p. :  ill. ;  32 cm. 
 - Gaps in technology .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metals<br/>Metal products
<br/><br/><label>Dewey Class. No.: </label>671  / OECD