Fletcher, G. P. (2001). Our secret constitution: How Lincoln redefined American democracy. Oxford University Press.
Chicago-referens (17:e uppl.)Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford ; New York: Oxford University Press, 2001.
MLA-referens (9:e uppl.)Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford University Press, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.