Ditchburn, R. W <br/><br/>
Light / 
R. W. Ditchburn 
 - London :  Black & son Ltd ,  1952 
 - 680 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light
<br/><br/><label>Dewey Class. No.: </label>535 DIT