Nag, Prithvish. <br/><br/>
Introduction to Geographical information system / 
Prithvish Nag and Smita Sengupta. 
 - New Delhi :  Concept publishing company,  c2008. 
 - xiv,398p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography (p. 343-390). 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>ISBN: </label>9788180694400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography.
<br/><br/><label>Dewey Class. No.: </label>910.285/NAI