Environmental Systems Research Institute <br/><br/>
ARC/info maps 1992 

 - [Colombo]  Environmental Systems Research Institute  1992 
 - 96 p. 
<br/><br/><label>ISBN: </label>249494 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems
<br/><br/><label>Dewey Class. No.: </label>910.285  / ENV