TY  - BOOK
AU  - James, Elizabeth.
TI  - How to keep a secret: writing and talking in code 
SN  - 0688418287
U1  - 001.54 J23h 1978 
PY  - 1978///
CY  - [s.l.]
PB  - Elizabeth James & Carol Barkin
KW  - Ciphers--Juvenile literature
KW  - Cryptography--Juvenile literature
KW  - Ciphers
KW  - Cryptography
ER  -