Basic mathematics and computer techniques for coal preparation and mining / 
edited by Kenneth K. Humphreys and Joseph W. Leonard 
 - New York :  Marcel Dekker,  1983 
 - 233 p. ;  23 cm. 
 - Energy, power, and environment  17 .
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0824718844 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining--Decision making