Style de citation APA (7e éd.)

O'Mara, M. P. (2015). Pivotal Tuesdays: Four Elections That Shaped the Twentieth Century. University of Pennsylvania Press.

Style de citation Chicago (17e éd.)

O'Mara, Margaret Pugh. Pivotal Tuesdays: Four Elections That Shaped the Twentieth Century. Philadelphia: University of Pennsylvania Press, 2015.

Style de citation MLA (8e éd.)

O'Mara, Margaret Pugh. Pivotal Tuesdays: Four Elections That Shaped the Twentieth Century. University of Pennsylvania Press, 2015.