Songina, O. A. <br/><br/>
Rare metals / 
O. A. Songina ; translated from Russian by J. Schmorak. 
 - 3rd ed. 
 - Jerusalem :  Israel Program for Scientific Translation,  1970. 
 - viii, 442 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. 395-440. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Metals