Macksey, Kenneth.     frey50        <br/><br/>
The searchers :  how radio interception changed the course of both world wars / 
Kenneth Macksey. 
 - London :  Cassell,  2003. 
 - 288 p. :  ill., maps ;  25 cm. 
<br/><br/><label>ISBN: </label>0304365459 9780304365456 
<br/><br/><label>LCCN: </label>2003467626 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio, Military--History.<br/>World War, 1939-1945--Electronic intelligence.<br/>World War, 1914-1918--Electronic intelligence.<br/>Radio--History.<br/>World War, 1939-1945--Secret service.<br/>World War, 1914-1918--Secret service.
<br/><br/><label>Dewey Class. No.: </label>355.34320904 Mac   9