Mineral facts and problems 
/ The Staff Bureau of Mines 
 - United States:   The Staff Bureau of Mines,   1985 
 - viii, 956p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineral industries
<br/><br/><label>Subjects--Index Terms: </label>Mines and mineral resources 
<br/><br/><label>Universal Decimal Class. No.: </label>R 622.2.004.28(73)  / M5