Shape /  [book] 

 - London :  Macdonald Educational,  c1970. 
 - 31 p. :  ill. ;  19 cm. 
 - Macdonald first library .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0356034291 :  $2.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Form perception.<br/>Size and shape.