TY  - BOOK
AU  - Rufi, Antoon W.
TI  - Network security: 1 and 2 companion guide 
SN  - 8131708926
AV  - TK5105.59 .R837 2007
PY  - 2007///
CY  - New Delhi
PB  - Pearson Education
KW  - Computet networking
N1  - Includes bibliographic references and index
ER  -