TY  - SER
ED  - United States of América.
TI  - Telephony
PY  - 1983///
CY  - Chicago 3
PB  - Telephony publishing Corp
N1  - V.204 No.4; V.204 No.9; V.204 No.13; V.204 No.17; V.204 No.21; V.204 No.26; V.203 No.9; V.205 No.14; V.205 No.14 Parte 2
ER  -