Clarke, Keith C. , <br/><br/>
Getting started with geographic information systems / 
Keith C. Clarke. 
 - 2nd ed. 
 - Prentice Hall series in geographic information science .
<br/><br/><label>ISBN: </label>0139238891 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems.
<br/><br/><label>LC Class. No.: </label>G70.212   / .C43 1999