APA (7 वां संस्करण) प्रशस्ति पत्र

Oakes, J. (2008). The radical and the Republican: Frederick Douglass, Abraham Lincoln, and the triumph of antislavery politics. W. W. Norton.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Oakes, James. The Radical and the Republican: Frederick Douglass, Abraham Lincoln, and the Triumph of Antislavery Politics. New York: W. W. Norton, 2008.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Oakes, James. The Radical and the Republican: Frederick Douglass, Abraham Lincoln, and the Triumph of Antislavery Politics. W. W. Norton, 2008.