Padgham, C. A. <br/><br/>
The perception of light and colour / 
by C. A. Padgham and J. E. Saunders. 
 - London :  Bell,  1975. 
 - ix, 192 p., 10 p. of plates :  ill. (some col.) ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>p. 179. 
<br/><br/><label>ISBN: </label>071351874X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Brightness perception.