Nilson, Arthur Reinhold. <br/><br/>
Practical radio communication :  principles, systems, equipment, operation, including very high and ultra-high frequencies and frequency modulation / 
by Arthur R. Nilson and J. L. Hornung 
 - 2d ed. 
 - New York ;  London :  McGraw-Hill Book Company, inc.,  1943. 
 - xxiii, [2], 927 p. :  ill. ;  24 cm. 
<br/><br/> Includes Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio.
<br/><br/><label>Dewey Class. No.: </label>621.384  / NIP 1943