Agor ,R <br/><br/>
A Text Book of Surveying & Levelling. 

 - 9th 
 - Delhi  Khanna Publishers  2005 
 - xxii,1004p. 
<br/><br/><label>ISBN: </label> Rs.180/- 
<br/><br/><label>Dewey Class. No.: </label>526.9