TY  - BOOK
AU  - JANECZKO PAUL B
AU  - JANECZKO PAUL B
TI  - LOADS OF CODES AND SECRET CIPHERS 
PY  - 1984///
PB  - DRAGON GRAFTON BOOKS
KW  - JANECZKO PAUL B
KW  - LOADS OF CODES AND SECRET CIPHERS
ER  -