Demers, Michael N. <br/><br/>
Fundamentals of geographic information systems 

 - 4th ed 
 - John wiley & sons, New delhi  2009 
 - xiii, 442 
<br/><br/><label>ISBN: </label>978-81-265-3721-1 
<br/><br/><label>Dewey Class. No.: </label>910.285 Dem