TY  - BOOK
AU  - Thorsen,June-Elizabeth
TI  - Computer security: equipment personnel & data 
SN  - 091370816X
PY  - 1974///
CY  - Los Angeles
PB  - Security World Publishing
KW  - Computers
KW  - Access control
KW  - Addresses, essays, lectures
KW  - Electronic data processing departments
KW  - Security measures
ER  -