TY  - BOOK
AU  - Marks, Leo
TI  - Between silk and cyanide : a codemaker's war, 1941-1945
SN  - 9780684867809
U1  - 940.548641 MAR 
PY  - 1998///
CY  - New York
PB  - Free Press
KW  - Cryptographers - Great Britain - Biography
ER  -