TY  - BOOK
AU  - Chorafas, Dimitris N.
TI  - TELEPHONY
U1  - 621.385 
PY  - 1984///
CY  - Englewood Cliffs
PB  - Prentice-Hall
KW  - Telecommunication -- Technological Innovations
KW  - Telephone -- Technological Innovations
ER  -