Clarke, Keith C. . <br/><br/>
Getting Started With Geographic information Systems /  Textual Documents 
Keith C.Clarke. 
 - Ist ed / 
 - New Jersey :  Prentice Hall,Upper Saddle River ,  1999. 
 - 338p ;  24cm. 
<br/><br/><label>ISBN: </label>0-13-923889-1 
<br/><br/><label>Subjects--Index Terms: </label>Geography G-Geog 
<br/><br/><label>Dewey Class. No.: </label>910.2  / Cl 55 Ge