TY  - BOOK
AU  - Klima,Richard E.
AU  - Sigmon,Neil
TI  - Cryptology: classical and modern 
T2  - Chapman & Hall/CRC cryptography and network security series
SN  - 9781138047624 (hardback)
U1  - 005.824 
PY  - 2019///
CY  - London
PB  - CRC Press
KW  - Cryptography
KW  - Data encryption (Computer science)
KW  - Ciphers
N1  - Includes bibliographical references and index
ER  -