Research & engineering applications in rock masses :  proceedings of the 26th U.S. Symposium on Rock Mechanics, South Dakota School of Mines & Technology, Rapid City, 26-28 June 1985 / 
edited by Eileen Ashworth. 
 - Rotterdam ;  Boston :  A.A. Balkema,  1985. 
 - 2 v. :  ill. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>90012174 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rock mechanics.<br/>Engineering geology