TY  - BOOK
AU  - Gallo,, Michael A.
TI  - Computer communications and networking technologies / 
U1  - 004.6 
PY  - 2002///
CY  - Australia
PB  - Cengage learning
KW  - Computer science
KW  - Computer communications
KW  - Data link layer
KW  - Network hardware components
ER  -