Yost,  M. <br/><br/>
The Rare-Earth Elements and Their Compounds 

 - New York :   John Wiley,  1947  
<br/><br/><label>Standard No.: </label>DEX-M2507 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ELEMENTO RARO
<br/><br/><label>Universal Decimal Class. No.: </label>546.65