TY  - BOOK
AU  - Henry J Beker,F C Piper
AU  - Piper,F C
TI  - CRYPTOGRAPHY AND CODING
SN  - 0198536232
U1  - 001.5436 
PY  - 1989///
CY  - 
PB  - Clarendon Press, Oxford
KW  - Cryptography
ER  -