List of Bureau of mines publications and articles January 1 to December 31, 1961 with subject and author index  
U.S. Bureau of mines. 
 - Washington  Department of  interior  1962 
<br/><br/><label>Subjects--Topical Terms: </label><br/>mineralogía<br/>minas<br/>industria minera
<br/><br/><label>Universal Decimal Class. No.: </label>316.344.25