Borchard. Abraham Lincoln and Horace Greeley. Southern Illinois University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBorchard. Abraham Lincoln and Horace Greeley. Southern Illinois University Press.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBorchard. Abraham Lincoln and Horace Greeley. Southern Illinois University Press.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.