TY  - BOOK
AU  - Haldane Robert A
TI  - The hidden war
SN  - 0312371977
AV  - D810.C88 
U1  - 940.54/88 
PY  - 1978///
CY  - New York
PB  - St. Martin's Press
KW  - World War 19391945
KW  - Cryptography
KW  - Secret service
N1  - Includes index; Bibliography: p. [198]-202
ER  -