Ditchburn, R. W.  <br/><br/>
Light / 
R. W. Ditchburn. 
 - 2nd ed. 
 - London :  Blackie & son,  c 1963. 
 - Vols. :  ill. ;  22 cm. 
<br/><br/> Includes index.<br/> 
<br/><br/>V. 2-Chapters XIII-XX ; 
<br/><br/>346  346 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light & related radiations.
<br/><br/><label>Dewey Class. No.: </label>535 / D635l