Puchstein, A. F., Conrad, A. G., & Lloyd, T. C. (1954). Alternating-current machines (3rd ed.). Asia Publishing House.
Cita Chicago (17th ed.)Puchstein, A. F., A. G. Conrad, i T. C. Lloyd. Alternating-current Machines. 3rd ed. New Delhi: Asia Publishing House, 1954.
Cita MLA (9th ed.)Puchstein, A. F., et al. Alternating-current Machines. 3rd ed. Asia Publishing House, 1954.
Atenció: Aquestes cites poden no estar 100% correctes.