TY  - BOOK
AU  - Mann, Scott Mitchel, Ellen, L & Krell, Mitchel 
TI  - Linux system security 
SN  - 81-7808-890-8 
U1  - 005.43 MAN  
PY  - 2003///
CY  - Pearson education asia 
PB  - Delhi 
KW  - Operating systems
ER  -