Agor, R. <br/><br/>
Tectbook of surveying and levelling 

 - Delhi :  Khanna Publisher,  2000 
 - 1234. 
<br/><br/><label>ISBN: </label>978817409  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulic engineering
<br/><br/><label>Dewey Class. No.: </label>627.131  / AGO