Ore deposits of the United States, 1933-1967 :  the Graton-sales volume / 
John D. Ridge, ed. 
 - 1st ed. / sponsored by the Rocky Mountain Fund. 
 - New York :  American Institute of Mining, Metallurgical & Petroleum Engineering,  1968. 
 - 2 v. 
 - Rocky Mountain Fund series .
<br/><br/> Reprinted 1970. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ore deposits--United States.