Não informado. (1966). Tech air. Society of Licensed Aircraft Engineers and Technologists.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Tech Air. Kingston Upon Thames, Inglaterra: Society of Licensed Aircraft Engineers and Technologists, 1966.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Tech Air. Society of Licensed Aircraft Engineers and Technologists, 1966.
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