01164cam a2200337 i 4500 295940702 TxAuBib 20100106120000.0 990202s1999||||||||||||||||||||||||eng|u 99017581 9780684864228 alk. paper 0684864223 alk. paper DLC eng rda DLC TxAuBib rda Marks, Leo. Between silk and cyanide [BOOK] : a codemaker's war, 1941-1945 / Leo Marks. Codemaker's war, 1941-1945. New York, NY : Free Press, 1999. 614 pages : illustrations ; 24 cm. txt rdacontent n rdamedia nc rdacarrier Includes index. 20100106. Marks, Leo. Cryptographers Great Britain Biography. World War, 1939-1945 Cryptography. World War, 1939-1945 Secret service Great Britain. World War, 1939-1945 Personal narratives, British. Biographies. Personal narratives.