Ninth International Sympossium on Computer-Assisted Cartography Baltimore, Maryland, April 2-7 

 - Falls church, VA :   American Society for Photogrammetry and Remote Sensing,  1989 
 - xviii, 879p. :   ill. ;   24cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0-944426-55-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cartography<br/>Computer programs<br/>Congresses, Canada<br/>Geographical information systems
<br/><br/><label>LC Class. No.: </label>GY GA101.2.I56