Innovative mine design for the 21st century  
/ Proceedings of the International Congress on Mine Design, Kingston, Ontario, Canada, 23-26 August 1993 
 - Rotterdam:   A. A. Balkema,   1993 
 - xiii, 1046p. 
<br/><br/><label>ISBN: </label>9054103256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>622(082.2)   / N3