APA-viite (7. p.)
Fletcher, G. P. (2001). Our secret constitution: How Lincoln redefined American democracy. Oxford University Press.
Chicago-viite (17. p.)
Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford ; New York: Oxford University Press, 2001.
MLA-viite (9. p.)
Fletcher, George P. Our Secret Constitution: How Lincoln Redefined American Democracy. Oxford University Press, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.