Não informado. (1919). Personnel: The management of people at work. American Management Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Personnel: The Management of People at Work. New York: American Management Association, 1919.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Personnel: The Management of People at Work. American Management Association, 1919.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.