TY  - BOOK
AU  - Palmer Michael
TI  - Guide to operations system security
SN  - 9788131506868
U1  - 005.8 PAL 
PY  - 2007///
CY  - New Delhi
PB  - Cengage learning
KW  - Operaing system
KW  - System security
N1  - Includes index
ER  -