Bogle, J. C. (2009). Enough: True measures of money, business, and life. John Wiley & Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBogle, John C. Enough: True Measures of Money, Business, and Life. Hoboken, N.J.: John Wiley & Sons, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBogle, John C. Enough: True Measures of Money, Business, and Life. John Wiley & Sons, 2009.
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