20th U.S. symposium on rock mechanics  
/ University of Texas  
 - Austin:  University of Texas,   1979  
 - 694p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics 
<br/><br/><label>Subjects--Index Terms: </label>Rock mechanics  
<br/><br/><label>Universal Decimal Class. No.: </label>552(082.2)   / L9