TY  - BOOK
AU  - Pritchard,J.A.T.
TI  - Computer security: facts and figures 
SN  - C81-453659
PY  - 1979///
CY  - Manchester (Eng.)
PB  - NCC Publications
KW  - Electric data processing departments
KW  - Security measures
KW  - Computers
KW  - Access control
ER  -