Anstett, T. F. <br/><br/>
Availability of rare-earth, yttrium, and related thorium oxides--market economy countries :  a minerals availability appraisal / 
by T. F. Anstett. 
 - [Washington, D.C.] :  U.S. Dept. of the Interior, Bureau of Mines,  1986. 
 - vi, 19 p. :  ill. 
 - Information circular ;  9111 .
 - Information circular (United States. Bureau of Mines) ;  9111. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yttrium earths.<br/>Thorium ores.<br/>Rare earths
<br/><br/><label>Dewey Class. No.: </label>622 s  553.4/94�19