Dittenhoefer, A. J. (2005). How we elected Lincoln: Personal recollections. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. Philadelphia: University of Pennsylvania Press, 2005.
Lua MLA (9ú heag.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. University of Pennsylvania Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.