Não informado. (1963). Electric power. British Electrical and Allied Manufacturers Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Electric Power. London: British Electrical and Allied Manufacturers Association, 1963.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Electric Power. British Electrical and Allied Manufacturers Association, 1963.
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