Dean, F.E. <br/><br/>
Tunnels and Tunnelling 

 - Frederick Muller Limited  London  1962 
 - 144p.  fig., ill 
<br/><br/><label>Nat. Bib. No.: </label>514 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>624.19  / DEA