APA-viite (7. p.)

Johns, A., & Salman, S. K. (1995). Digital protection for power systems. P. Peregrinus on behalf of the Institution of Electrical Engineers. https://doi.org/10.1049/PBPO015E

Chicago-viite (17. p.)

Johns, Allan, ja S. K. Salman. Digital Protection for Power Systems. London: P. Peregrinus on behalf of the Institution of Electrical Engineers, 1995. https://doi.org/10.1049/PBPO015E.

MLA-viite (9. p.)

Johns, Allan, ja S. K. Salman. Digital Protection for Power Systems. P. Peregrinus on behalf of the Institution of Electrical Engineers, 1995. https://doi.org/10.1049/PBPO015E.