TY  - SER
ED  - United States of América.
TI  - Telephony
PY  - 1980///
CY  - Chicago 3
PB  - Telephony publishing Corp
N1  - V.198 No.3; V.198 No.8; V.198 March; V.198 No.18; V.198 No.21; V.198 No.26; V.199 No.4; V.199 No.8; V.199 No.16; V.199 No.25
ER  -