Não informado. (1938). Proceedings of the American Power Conference. Illinois Institute of Technology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the American Power Conference. Chicago, Ill: Illinois Institute of Technology, 1938.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the American Power Conference. Illinois Institute of Technology, 1938.
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