TY  - BOOK
AU  - Kozaczuk,Władysław
TI  - W kre̜gu Enigmy
SN  - 8505112543
AV  - D810.C88 K69 1986
PY  - 1986///
CY  - Warszawa
PB  - "Ksia̜żka i Wiedza"
KW  - Enigma cipher system
KW  - Machine ciphers
KW  - World War, 1939-1945
KW  - Cryptography
KW  - Military intelligence
N1  - Includes bibliographical references (p. 431-[436]) and index
ER  -