Pratap Rana <br/><br/>
Geographic Information Systems 
/ by Rana Pratap 
 - New Delhi  Shree Publishrs & Distributors  2006 
 - 227p. 
<br/><br/><label>ISBN: </label>8183291392 
<br/><br/><label>Dewey Class. No.: </label>621.3825  / PRA/G