Não informado. (1932). The Tool Engineer. American Society of Tool and Manufacturing Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Tool Engineer. Dearborn, Mich: American Society of Tool and Manufacturing Engineers, 1932.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Tool Engineer. American Society of Tool and Manufacturing Engineers, 1932.
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