De Ment, Jack Andrew   1920- <br/><br/>
Rarer Metals / 
by J. de Ment , H. C. Dake ; with a foreword and additional chapters by Eric R. Roberts ,R. Campbell Williams. 
 - London :  Temple Press ,  1949 
 - xv, 345 pages .:  illustrations .;  23 cm 
<br/><br/>Includes bibliographical references and indexs ( p.: 328 - 345 ) 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nonferrous metals
<br/><br/><label>Dewey Class. No.: </label>669.2  / MEN 1949