Duggal, S K <br/><br/>
Surveying : volume: 2 

 - 3 
 -   Tata McGraw Hill Publishing Co. Ltd., New Delhi  2011 
 - 449 
<br/><br/><label>ISBN: </label>746 
<br/><br/><label>Dewey Class. No.: </label>624.1517 DUG-S;5.2