TY  - BOOK
AU  - Kitahara, Yasusada
TI  - Information network system : telecommunications in the twenty-first century
SN  - 0435718487
U1  - 621.38 
PY  - 1983///
CY  - London
PB  - Heinemann Educational Books
KW  - Telecommunication--Technological innovations
KW  - Telecommunication
KW  - Data transmission systems
ER  -