Raper, C. L. (1906). The principles of wealth and welfare: Economics for high schools. The Macmillan Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRaper, Charles Lee.. The Principles of Wealth and Welfare: Economics for High Schools. New York: The Macmillan Company, 1906.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRaper, Charles Lee.. The Principles of Wealth and Welfare: Economics for High Schools. The Macmillan Company, 1906.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.