Long, S. Grit success: Stories of millionaires in our neighborhood. Prentice-Hall, c1999.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLong, Susan. Grit Success: Stories of Millionaires in Our Neighborhood. Singapore: Prentice-Hall, c1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLong, Susan. Grit Success: Stories of Millionaires in Our Neighborhood. Prentice-Hall, c1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.