TY  - BOOK
ED  - American Telephone and Telegraph Company.
TI  - Principles of electricity applied to telephone and telegraph work: A training course text prepared for employees of the long lines department, american telephone and telegraph company
AV  - TK5261 P75
PY  - 1953///
CY  - [new york]
PB  - American telephone and telegraph
KW  - Teléfono
KW  - Telégrafo
KW  - Electricidad
ER  -