TY  - BOOK
AU  - Price Hossell
TI  - Ciphers and codes
T2  - Heinemann Knowlt
SN  - 1588104842
U1  - CG 419.014 
PY  - 2003///
CY  - Chicago,Illinois
PB  - Heinemann Library
KW  - Codigo cifrados
KW  - Comunicación
N1  - Presents an overview of various types of codes and ciphers used throughout history, famous cryptologists, and how to create your own secret messages
ER  -