TY  - BOOK
AU  - Lewin,Ronald
TI  - The American magic: codes, ciphers and the defeat of Japan 
PY  - 1982///
CY  - New York
PB  - Farrar Straus Giroux
KW  - World war, 1939-1945
KW  - Cryptography
KW  - World War, 1939-1945
KW  - Secret service
KW  - United States
KW  - Japan
KW  - History
KW  - 1912-1945
N1  - Includes appendices, bibliography and index
ER  -