Rare earth minerals  chemistry, origin and ore deposits 
edited by Adrian P. Jones, Frances Wall and C. Terry Williams 
 - London  Chapman & Hall  1996 
 - 372 p. ; 25 cm. 
 - The Mineralogical Society Series  7 .
<br/><br/><label>ISBN: </label>0412610302  RM122.45 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earths, Rare<br/>Geochemistry<br/>Minerals