APA (7 वां संस्करण) प्रशस्ति पत्र
Nicolay, J. G., & Burlingame, M. (1996). An oral history of Abraham Lincoln: John G. Nicolay's interviews and essays. Southern Illinois University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Nicolay, John G., और Michael Burlingame. An Oral History of Abraham Lincoln: John G. Nicolay's Interviews and Essays. Carbondale [Ill.]: Southern Illinois University Press, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Nicolay, John G., और Michael Burlingame. An Oral History of Abraham Lincoln: John G. Nicolay's Interviews and Essays. Southern Illinois University Press, 1996.
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