Clarke, Keith C. <br/><br/>
Getting started with geographic information systems 

 - 2nd 
 - New Jersey  Prentice Hall  1997 
 - 338p. 
<br/><br/><label>ISBN: </label>0139238891 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>910.285 CLA