TY  - BOOK
AU  - Charles N. Thurwachter, Jr.
TI  - Data and telecommunications: systems and applications 
SN  - 137939108
U1  - 004.6  T547 
PY  - 2000///
CY  -  N.J
PB  - Prentice Hall
KW  - Data transmission systems
KW  -   Computer networks
N1  - Includes index
ER  -