Schoeller, Walter Raymond,  1880-1947. <br/><br/>
The analysis of minerals and ores of the rarer elements;  a manual for analytical chemists, metallurgists, and advanced students, 
by W. R. Schoeller and A. R. Powell. 
 - 3d ed., extensively rev.  by A. R. Powell. 
 - New york :   Hafner Publishing Company,  1955. 
 - xv, 408 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RARE EARTHS<br/>TIERRAS RARAS
<br/><br/><label>Universal Decimal Class. No.: </label>543.6