Central Board of Irrigation and power <br/><br/>
International Symposium Tunnelling for Water Resource and Power Projects 

 - New Delhi  Central Board of Irrigation and power  1988 
 - p.406 
<br/><br/><label>ISBN: </label>8120402847 
<br/><br/><label>Dewey Class. No.: </label>624.193 C27I