Shea-Albin, V. R. <br/><br/>
Geological features that contribute to ground control problems in underground coal mines / 
by Valois R. Shea-Albin. 
 - Washington, DC :  U.S. Dept. of the Interior, Bureau of Mines,  1993. 
 - ii, 38 p. :  ill. ;  28 cm. 
 - Information circular ;  9370 .
 - Information circular (United States. Bureau of Mines) ;  9370. .
<br/><br/>Includes bibliographical references (p. 32-34). 
<br/><br/><label>LCCN: </label>93005540  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ground control (Mining)<br/>Coal--Geology.
<br/><br/><label>LC Class. No.: </label>TN295  TN288  / .U4 no. 9370 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.334