Geographic information systems :  the microcomputer and modern cartography / 
edited by D. R. Fraser Taylor 
 - Oxford  :  Pergamon Press,  1991 
 - 251 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>008040278X 
<br/><br/><label>LCCN: </label>90-007762 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geographic information systems