Wahlstrom, Ernest Eugene,  1909- <br/><br/>
Tunneling in rock 

 - 250 páginas 
 - Developments in geotechnical engineering ;  3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Construcción de túneles
<br/><br/><label>LC Class. No.: </label>TA805  / W34