TY  - SER
ED  - United States of América.
TI  - Telephony
PY  - 1970///
CY  - Chicago 3
PB  - Telephony publishing Corp
N1  - V.178 No.6; V.178 No.20; V.178 No.23; V.178 No.24; V.179 No.2; V.179 No.4; V.179 No.6; V.179 No.7; V.179 No.8; V.179 No.9; V.179 No.11; V.179 No.12; V.179 No.13; V.179 No.14; V.179 No.15; V.179 No.16; V.179 No.17
ER  -