TY  - BOOK
AU  - Brewster, R. L.
TI  - Telecommunications technology
SN  - 81-85095 87-6
U1  - 621.382 
PY  - 1988///
CY  - New Delhi
PB  - East - West
KW  - Data transmission
KW  - Telecommunication
KW  - Telephone network
N1  - Includes index
ER  -