Hudson, R. G. (1941). Engineering electricity (3.).
Cita Chicago Style (17a ed.)Hudson, Ralph G. Engineering Electricity. 3. New York, New York : J. Wiley, 1941.
Cita MLA (9a ed.)Hudson, Ralph G. Engineering Electricity. 3. 1941.
警告：這些引文格式不一定是100％准確.