Não informado. (1930). NACA Technical Memorandum. U.S. National Advisory Committee for Aeronautics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. NACA Technical Memorandum. Washington: U.S. National Advisory Committee for Aeronautics, 1930.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. NACA Technical Memorandum. U.S. National Advisory Committee for Aeronautics, 1930.
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