TY  - BOOK
AU  - Halsall, Fred
TI  - Data communications, computer networks and open systems
SN  - 9812338927
U1  - 004.6 
PY  - 1996///
CY  - New York
PB  - ; Addison-Wesley
KW  - Computer Networks
KW  - Data Commucation
KW  - Networking
ER  -