TY  - BOOK
AU  - Harrington, Jan L.,
TI  - Network security : a practical approach / Jan L. Harrington
SN  - 9780080455372
U1  - 005.8,HAR 
PY  - 2017///
CY  - Burlington
PB  - Elsevier
KW  - Geometrical drawing
KW  - Mechanical drawing
ER  -