DeMers, Michael N. <br/><br/>
GIS for dummies / 
by Michael N. DeMers 
 -  Wiley Publishing  2009 
<br/><br/>16999 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems
<br/><br/><label>LC Class. No.: </label>G70.212  / Dem