TY  - BOOK
AU  - Griffiths,J.M.
TI  - Local telecommunications 2 into the digital era
SN  - 0863410804
U1  - TK/5102.3 
PY  - 1986///
CY  - London
PB  - Peter Peregrinus Ltd.
KW  - Telecommunication -- Great Britain
KW  - Telecommunication systems.
ER  -