TY  - BOOK
AU  - Haldane,Robert A.
TI  - The hidden war
SN  - 0312371977
AV  - D810.C88 H11
PY  - 1978///
CY  - New York
PB  - St. Martin's Press
KW  - World War, 1939-1945
KW  - Cryptography
KW  - Secret service
KW  - Guerre mondiale, 1939-1945
KW  - Cryptographie
KW  - Service secret
KW  - fast
KW  - World War 2
KW  - Military cryptology
N1  - Includes bibliographical references (pages 198-202) and index
ER  -