The Electricity Council. (1981). Power system protection (2a. ed.). Peter Peregrinus.
Tohutoru Kātū Chicago (17th ed.)The Electricity Council. Power System Protection. 2a. ed. Hemel Hempstead: Peter Peregrinus, 1981.
Tohutoro MLA (9th ed.)The Electricity Council. Power System Protection. 2a. ed. Peter Peregrinus, 1981.
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