GREGORY, J. (1971). Alternating currents. Methuen.
Cita Chicago (17th ed.)GREGORY, J.M. Alternating Currents. London: Methuen, 1971.
Cita MLA (9th ed.)GREGORY, J.M. Alternating Currents. Methuen, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.