DeMers, Micheal N. <br/><br/>
Fundamentals of geographic information systems 

 - 3rd. ed. 
 -  John Wiley & Sons, USA  2005 
 - xi, 468 p.: ill.; 26 cm. 
<br/><br/><label>ISBN: </label>0471204919 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems-Textbooks