Não informado. (1947). Aeronautical engineering index. Institute of Aeronautical Sciences.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Aeronautical Engineering Index. New York: Institute of Aeronautical Sciences, 1947.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Aeronautical Engineering Index. Institute of Aeronautical Sciences, 1947.
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