Cita APA

American Telephone and Telegraph Company. Long Lines Dept. (1939). 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, November 1938. s.n.

Citación estilo Chicago

American Telephone and Telegraph Company. Long Lines Dept. 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, November 1938. [New York]: s.n, 1939.

Cita MLA

American Telephone and Telegraph Company. Long Lines Dept. 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, November 1938. s.n, 1939.