Bauer, Eric R. <br/><br/>
Cutter roof failure :  six case studies in the Northern Appalachian Coal Basin / 
by Eric R. Bauer. 
 - [Washington, D.C.] :  U.S. Dept. of the Interior, Bureau of Mines,  [1990] 
 - 18 p. :  ill., map 
 - Information circular ;  9266 .
 - Information circular (United States. Bureau of Mines) ;  9266. .
<br/><br/><label>LCCN: </label>90002267  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine roof control.<br/>Coal mines and mining--Appalachian Region.