TY  - SER
TI  - Electrical communication
SN  - 0013-4252
PY  - 1922///-
CY  - Harlow
PB  - ITTC Corporation
KW  - Telephone
KW  - Periodicals
KW  - Radio
KW  - Telegraph
N1  - UKM: v.61-65 (1987-1991), (1993)
ER  -