APA-ийн эшлэл(7 дахь хэвлэлт)

Fletcher, G. P. (2001). Our secret constitution: How Lincoln redefined American democracy. Oxford University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford ; New York: Oxford University Press, 2001.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford University Press, 2001.