TY  - BOOK
AU  - Held, Gilbert
TI  - Data communications networking devices : characteristics, operation, applications
SN  - 0471909475
U1  - 001.64404 
PY  - 1986///
CY  - Chichester
PB  - John Wiley
KW  - Computer Networks
KW  - Data Transmission Systems
N1  - Rev. Ed. Of : Data Communication Components
ER  -