Não informado. (1973). International Journal of Mechanical Engineering Education. Institution of Mechanical Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Mechanical Engineering Education. London: Institution of Mechanical Engineers, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Mechanical Engineering Education. Institution of Mechanical Engineers, 1973.
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