Gorr Wilpen L <br/><br/>
Learning and using geographic information systems. 

 - Australia  Cengage Learning        2004 
 - 261p.  cm. 
<br/><br/><label>Standard No.: </label>93135 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic-Information System
<br/><br/><label>Dewey Class. No.: </label>D6,8(2),9(U), P4