International Conference on Large Electric Systems Paris, France. (1967). Proceedings of the 21st session: International Conference on Large Electric Systems, Paris, 1966. CIGRE.
Chicago-referens (17:e uppl.)International Conference on Large Electric Systems Paris, France. Proceedings of the 21st Session: International Conference on Large Electric Systems, Paris, 1966. Paris: CIGRE, 1967.
MLA-referens (8:e uppl.)International Conference on Large Electric Systems Paris, France. Proceedings of the 21st Session: International Conference on Large Electric Systems, Paris, 1966. CIGRE, 1967.
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