Ditchburn, R. W. <br/><br/>
Light / 
R. W. Ditchburn. 
 - 2nd ed. 
 - London :  Blackie & Son Ltd.,  1963. 
 - 518 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light.