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, January, 1953
AV  - TK5261 .A5 1953
U1  - 621.38 
PY  - 1953///]
CY  - [New York
KW  - Telephone
KW  - Telegraph
KW  - Electricity
UR  - http://www.archive.org/details/principlesofelec00amer
UR  - http://www.openlibrary.org/books/OL6131152M
ER  -