Não informado. (1946). Mechanical Engineering Report. National Research Council, Division of Mechanical Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Mechanical Engineering Report. Ottawa: National Research Council, Division of Mechanical Engineering, 1946.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Mechanical Engineering Report. National Research Council, Division of Mechanical Engineering, 1946.
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