Agor, R. <br/><br/>
Advanced surveying 

 - 2nd. 
 - Delhi  Khanna publishers  1981 
 - 645p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICAL GEOGRAPHY<br/>SURVEYING
<br/><br/><label>Dewey Class. No.: </label>526.9  / AGO