Matson, Thomas K. <br/><br/>
The reserve base of coal for underground mining in the Western United States  
Matson, Thomas K. 
 - Washington  Bureau of mines  1975 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>CARBON
<br/><br/><label>Universal Decimal Class. No.: </label>622.33