Hewitson, L. G., Brown, M., & Balakrishnan, R. (2005). Practical power systems protection. Newnes.
Cita Chicago (17th ed.)Hewitson, L. G., Mark Brown, i Ramesh Balakrishnan. Practical Power Systems Protection. Oxford: Newnes, 2005.
Cita MLA (8th ed.)Hewitson, L. G., et al. Practical Power Systems Protection. Newnes, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.