Gregory, Cedric E. <br/><br/>
Rudiments of Mining practice. 

 - Federal republic of Germany :  Trans Tech Publications,  1983. 
 - 141 p.  
<br/><br/> LIFBI. 
<br/><br/><label>ISBN: </label>0878490426 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minería
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>622