Gorr, Wilpen L. <br/><br/>
GIS tutorial / 
By Wilpen L Gorr, Kristen S Kurland and David W Allen. 
 - 4th ed. 
 - California :  Esri Press,  2011. 
 - 401p.v.<3>. ;  00 cm. ; +  DVD. 
<br/><br/><label>Dewey Class. No.: </label>526.90285  / GOR