Singh,Bhawani Goel,R.K <br/><br/>
Tunnelling in weak rocks 
/Bhawani Singh; R.K.Goel 
 - London  Elsevier  2006 
 - xviii,489p. 
 - Elsevier geo-engineering book series .
<br/><br/> 	Includes Index 
<br/><br/><label>ISBN: </label>80449875 
<br/><br/><label>Dewey Class. No.: </label>624.193  / SIN