Sombart, W., & Epstein, M. (1915). The quintessence of capitalism: A study of the history and psychology of the modern business man. E.P. Dutton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSombart, Werner, और Mordecai Epstein. The Quintessence of Capitalism: A Study of the History and Psychology of the Modern Business Man. New York: E.P. Dutton, 1915.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSombart, Werner, और Mordecai Epstein. The Quintessence of Capitalism: A Study of the History and Psychology of the Modern Business Man. E.P. Dutton, 1915.
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