Keates, J. S. <br/><br/>
Understanding maps / 
J.S. Keates 
 - England  Addison Wesley Longman Limited  1982 
 - 139 p.  ill.  24cm. 
<br/><br/> "A Halsted Press book." 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0582239273  RM84.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maps<br/>Visual perception