Courant, Richard,  1888-1972 <br/><br/>
The theory of electro magnetic waves / 
Richard Courant 
 - New York :  Interscience Publishers,  1951 
 - vii, 289 p. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electromagnetic waves<br/>Electricity<br/>Magnetism