Volkwein, J. C. <br/><br/>
A method to eliminate explosion hazards in auger highwall mining / 
by Jon C. Volkwein and James P. Ulery. 
 - Washington, D.C. :  Bureau of Mines, U.S. Dept. of the Interior,  1993. 
 - 14 p. :  ill. ;  29 cm. 
 - Report of investigations ;  9462 .
 - Report of investigations (United States. Bureau of Mines) ;  9462. .
<br/><br/>Includes bibliographical references (p. 14). 
<br/><br/><label>LCCN: </label>92042010  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine explosions--Prevention.<br/>Gases, Rare--Testing.<br/>Coal augers.
<br/><br/><label>LC Class. No.: </label>TN23  / .U43 no. 9462 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.83