Cita APA (7th ed.)
Middleton, R. G. (1968). Practical electricity (2nd ed.). Macmillan ; Collier Macmillan.
Cita Chicago (17th ed.)
Middleton, Robert Gordon. Practical Electricity. 2nd ed. New York : London: Macmillan ; Collier Macmillan, 1968.
Cita MLA (9th ed.)
Middleton, Robert Gordon. Practical Electricity. 2nd ed. Macmillan ; Collier Macmillan, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.