Agor, R.  <br/><br/>
A textbook of advanced surveying / 

 - 4th. 
 - New Delhi,   Khanna Publishers,   c2013. 
 - xvi, 684p. ;  ill. ;  21.9 cm.  
 -  v.2 .
<br/><br/><label>ISBN: </label>8174090533 
<br/><br/><label>LC Class. No.: </label>18767-18787 
<br/><br/><label>Dewey Class. No.: </label>526.2