Dittenhoefer, A. J. (2005). How we elected Lincoln: Personal recollections. University of Pennsylvania Press.
Chicago-viite (17. p.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. Philadelphia: University of Pennsylvania Press, 2005.
MLA-viite (9. p.)Dittenhoefer, Abram J. How We Elected Lincoln: Personal Recollections. University of Pennsylvania Press, 2005.
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