TY  - BOOK
AU  - Halsall, Fred
TI  - Data communication, computer networks and open systems
SN  - 0-201-42293-X
U1  - 004.67 HAL 
PY  - 1996///
CY  - NEW YORK
PB  - ADDISON WESLEY
KW  - COMPUTER NETWORKS AND OPEN SYSTEMS OPEN SYSTEMS DATA COMMUNICATION AND OPEN SYSTEMS
ER  -