TY  - GEN
AU  - Masterman J C
TI  - The double-cross system in the war of 1939 to 1945,
SN  - 0300014961
AV  - D810.S7 
U1  - 940.54/86/42 
PY  - 1972///
CY  - New Haven
PB  - Yale University Press
KW  - World War 19391945
KW  - Secret service
KW  - Great Britain
ER  -