TY  - BOOK
AU  - Silver,Gerald A.
AU  - Silver,Myrna
TI  - Data communication for business
SN  - 0878352309
U1  - 005.7/1�19 
PY  - 1987///
CY  - Boston
PB  - Boyd & Fraser
KW  - Data transmission systems
KW  - Business
KW  - Communication systems
N1  - Includes index
ER  -