TY  - BOOK
AU  - Halsall,Fred;
TI  - Data Communication ,Computer Networks and Open systems:
SN  - 020142293x
U1  - 004.6HAL1996. 
PY  - 1996///,
CY  - England.
PB  - Addisonwesley
KW  - Computer Networks
N1  - references and index are included
ER  -