Mayercheck, William D. <br/><br/>
Preliminary analysis of methodologies for mining thin-seam mountaintop coal resources / 
by William D. Mayercheck, Jasinder S. Jaspal, and Richard B. Farrar. 
 - Washington, D.C. :  U.S. Dept. of the Interior, Bureau of Mines,  1990. 
 - ii, 41 p. :  ill., maps ;  28 cm. 
 - Information circular ;  9270 .
 - Information circular (United States. Bureau of Mines) ;  9270. .
<br/><br/>Includes bibliographical references (p. 41). 
<br/><br/><label>LCCN: </label>90002478  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining--Appalachian Region.
<br/><br/><label>LC Class. No.: </label>TN295  TN805.A5  / .U4 no. 9270 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.334/0974 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.27:9270