Não informado. (1979). Energy Engineering: Journal of the Association of Energy Engineers. Association of Energy Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Energy Engineering: Journal of the Association of Energy Engineers. Atlanta, Ga: Association of Energy Engineering, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Energy Engineering: Journal of the Association of Energy Engineers. Association of Energy Engineering, 1979.
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