Dittenhoefer, A. J. (2005). How we elected Lincoln: Personal recollections. University of Pennsylvania Press.
Chicago-referens (17:e uppl.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. Philadelphia: University of Pennsylvania Press, 2005.
MLA-referens (9:e uppl.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. University of Pennsylvania Press, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.