TY  - BOOK
AU  - Schweber william L
TI  - Data communications
SN  - 0071003436
U1  - 621.38SCH 
PY  - 1988///,
CY  - New york
PB  - MCgraw hill book company
KW  - An introduction to communications
KW  - Modulation
KW  - Networks
N1  - index
ER  -