Keates, J. S.,  1925- <br/><br/>
Understanding maps / 
J. S. Keates 
 - 2nd ed. 
 - London :  Longman,  1996 
 - 334 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0582239273 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maps<br/>Visual perception