Mining voice :    the magazine of the National Mining Association. 

 - Washington, D.C. :    National Mining Association,    1996- 
 - v. :    ill. ;    29 cm. 
 - Bimonthly 
<br/><br/>  Latest issue consulted: Vol. 2, no.1 (Feb. 1996). 
<br/><br/><label>ISSN: </label>1080-6121 
<br/><br/><label>Dewey Class. No.: </label>622