TY  - BOOK
AU  - Myron E. Sveum.
TI  - Data communications: an overview 
SN  - 130798622
U1  - 004.6 S968 
PY  - 2000///
CY  -  N.J
PB  - Prentice Hall
KW  - Data transmission systems
N1  - Includes index
ER  -