Tomlinson, R. F. <br/><br/>
Computer handling of geographical data :  an examination of selected geographic information systems. 

 - Paris :  Unesco Press,  1976. 
 - 214 p. : ill. 
<br/><br/><label>ISBN: </label>9231013408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems--Geography.<br/>Geographic information systems.