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

 - Fourth edition 
 - xiii, 443 pages :  illustrations ;  26 cm 
<br/><br/><label>ISBN: </label>9780470129067 (alk. paper) 0470129069 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems
<br/><br/><label>Dewey Class. No.: </label>910 JOH 2009 A118 Or.