Masterman, J. C.  1891- <br/><br/>
The double-cross system in the war of 1939 to 1945, 
by J. C. Masterman. 
 - New Haven,  Yale University Press,  1972. 
 - xxi, 203 p.  22 cm. 
<br/><br/><label>ISBN: </label>0300014961 
<br/><br/><label>LCCN: </label>77158140  
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Secret service--Great Britain.
<br/><br/><label>Subjects--Index Terms: </label>World War, 1939-1945 -- Secret service -- Great Britain 
<br/><br/><label>LC Class. No.: </label>D810.S7  / M28 1972 
<br/><br/><label>Dewey Class. No.: </label>940.54/86/42