Não informado. (1948). Midwest Engineer. Western Society of Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Midwest Engineer. Chicago, Ill: Western Society of Engineers, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Midwest Engineer. Western Society of Engineers, 1948.
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