TY  - BOOK
AU  - Easttom,Chuck
TI  - Network defense and countermeasures: principles and practices
SN  - 0131711261
U1  - TK/5105.59 
PY  - 2006///
CY  - New Jersey
PB  - Pearson Prentice Hall, UpperSaddle River
KW  - Computer networks -- Security measures.
N1  - Includes bibliographical references and index
ER  -