Não informado. (1922). Harvard Business School Bulletin. Harvard Business School.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Harvard Business School Bulletin. Boston, Mass: Harvard Business School, 1922.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Harvard Business School Bulletin. Harvard Business School, 1922.
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