Cita APA (7th ed.)
Mayfield, J. C. (1944). Electricity for beginners.
Cita Chicago (17th ed.)
Mayfield, John Cunliffe. Electricity for Beginners. 1944.
Cita MLA (9th ed.)
Mayfield, John Cunliffe. Electricity for Beginners. 1944.
Atenció: Aquestes cites poden no estar 100% correctes.