Geographic Information System/  English. 
Debashis Chakraborty, Rabi N. Sahoo. 
 - New Delhi:  Viva Books,  2007. 
 - xix, 258p.:  ill;  24.5cm. 
<br/><br/><label>ISBN: </label>8130900416 
<br/><br/><label>Dewey Class. No.: </label>681.142.1  / CHA