TY  - BOOK
AU  - Hollingworth,Dennis
ED  - Research and Development Corporation, 
TI  - Enhancing computer system security
T2  - The Rand paper series
PY  - 1973///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Computers
KW  - Access control
N1  - Includes bibliographical references
ER  -