Introduction to physics, Vol.4: Light and electromagnetism / 
s.n. 
 -  Holt , Rinehart & Winston, New York,  1969 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>530 INT.4