Geochemical studies of rare earth elements in the Portuguese Pyrite Belt, and geologic and geochemical controls on gold distribution 
edited by David J. Grimes and S.J. Kropschot. 
 - Washington  Denver, CO  U.S. G.P.O.  For sale by U.S. Geological Survey, Information Services  1998. 
 - iv, 40 p.  ill.  28 cm. 
 - U.S. Geological Survey professional paper  1596 .
<br/><br/> "Prepared with the support and cooperation of the Luso American Development Foundation, the Serviços Geológicos de Portugal, and the Serviço de Fomento Mineiro."  Two folded plates in pocket. 
<br/><br/>Includes bibliographical references (p. 28-29). 
<br/><br/><label>LCCN: </label>98010121  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geochemistry--Portugal.<br/>Gold ores--Portugal.<br/>Rare earth metals--Portugal.
<br/><br/><label>LC Class. No.: </label>QE516.R2  / G435 1998 
<br/><br/><label>Dewey Class. No.: </label>553.4/94/09469 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:1596