Admiralty <br/><br/>
Handbook of wireless telegraphy 

 - London  His Majesty's Stationary Office  1938 
 - 257 p. 
<br/><br/> Includes appendix and indxes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wireless telegraphy.
<br/><br/><label>Dewey Class. No.: </label>D65,48 F5A,G8.1