TY  - BOOK
AU  - Dimitris N Chorafas
TI  - Telephony:  : today and tomorrow
SN  - 9780139027000
U1  - 621.385 CHO 
PY  - 1984///
CY  - Englewood Cliffs, N.J. 
PB  - : Prentice-Hall
KW  - Telecommunication -- Technological innovations
KW  - Telephone -- Technological innovations
KW  - Telephone systems
KW  - Dimitris N Chorafas
KW  - Electrical
ER  -