Wahlstrom, Ernest E. <br/><br/>
Tunneling in Rock 

 - London  Elsevier Scientific  1973 
 - xiii,250 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Tunneling in Rock
<br/><br/><label>Dewey Class. No.: </label>624.192  / W12T