Hudson, R. G. (1941). Engineering electricity (3.).
Cita Chicago (17th ed.)Hudson, Ralph G. Engineering Electricity. 3. New York, New York : J. Wiley, 1941.
Cita MLA (9th ed.)Hudson, Ralph G. Engineering Electricity. 3. 1941.
Atenció: Aquestes cites poden no estar 100% correctes.
