Seagers, Paul W. <br/><br/>
Light, vision and learning  / 
Paul W. Seagers 
 - New York :   Better Light Better Sight Bureau,   1963 
 - 95 p. :  ill. ;  23 cm. 
<br/><br/> Includes bibliography 
<br/><br/><label>Dewey Class. No.: </label>371.91 SEA