TY  - BOOK
AU  - Winterbotham,F.W.
TI  - The Ultra secret 
SN  - 0060146788 
U1  - 940.54 
PY  - 1974///
CY  - New York
PB  - Harper & Row
KW  - World War 1939-1945
KW  - World War, 1939-1945
KW  - Personal narratives, British
ER  -