Saxena, S.C. <br/><br/>
Tunnel Engineering 

 - 1st 
 - Delhi  Dhanpat Rai  1999 
 - viii, 176p. 
<br/><br/><label>ISBN: </label> RS 25.00 
<br/><br/><label>Dewey Class. No.: </label>627.2 SAX, S.C