TY  - BOOK
AU  - Schweber,William L.
TI  - Data communication
SN  - 007001097
U1  - 004.6 
PY  - 1988///
CY  - New York
PB  - McGraw- Hall Book Company
KW  - Data communication
KW  - Modulation
KW  - Communication and channel
KW  - Use of communication
ER  -