Hartridge, H. <br/><br/>
Colour and how we see them 
Hartridge, H. 
 - LONDON  G. BELL & SONS  1949 
 - 158 pages 
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>Hdva,14  1949