Não informado. (2002). Business and commercial aviation. Ziff-Davis Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Business and Commercial Aviation. New York: Ziff-Davis Publishing, 2002.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Business and Commercial Aviation. Ziff-Davis Publishing, 2002.
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