Gregory, R. L. <br/><br/>
Visual perception / 
R. L. Gregory 
 - London :  Oxford University Press,  1973 
 - 16 p. :  ill. ;  25 cm. 
 - Oxford biology readers,  no. 40 .
<br/><br/>Bibliography : p. 16. 
<br/><br/><label>ISBN: </label>0199141401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual perception