Chapman,D <br/><br/>
Introduction to tunnel construction 

 - 2nd ed. 
 - Boca Raton  CRC Press  2018 
 - xxix,425p. 
<br/><br/><label>ISBN: </label> RS 4699.06 
<br/><br/><label>Dewey Class. No.: </label>624.193 CHA,D