Laboratory studies of yielding rock bolts / 
by J.P. Conway ...[et al.], with an appendix on dynamic tests on rock bolts, by Kenneth G. Hoge. 
 - [Washington] :  U.S. Dept. of the Interior, Bureau of Mines,  [1975]. 
 - 40 p. :  ill. 
 - Report of investigations ;  8058 .
 - United States.  Bureau of Mines.  Report of investigations ;  8058 .
 - Report of investigations (United States. Bureau of Mines) ;  8058 .
<br/><br/><label>LCCN: </label>92015009     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rock bolts.