Moore, Elwood S. <br/><br/>
Coal; its properties, analysis, classification, geology, extraction, uses and distribution 

 - 2a ed. 
 - New York  John Wiley &amp; Sons  1950 
 - 473 p.  ilus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CARBON<br/>MINAS Y MINERIA<br/>YACIMIENTOS MINERALES
<br/><br/><label>Universal Decimal Class. No.: </label>553.94+622.33/M77