TY  - BOOK
AU  - Beyda,William J.
TI  - Data communications: from basics to broadband 
SN  - 013145692X
AV  - TK5105  .B484 2005
PY  - 2005///
CY  - Upper Saddle River, NJ
PB  - Pearson
KW  - Data transmission systems
ER  -