Graubard, S. R. (2006). The presidents: The transformation of the American presidency from Theodore Roosevelt to George W. Bush. Penguin.
Chicago-Zitierstil (17. Ausg.)Graubard, Stephen Richards. The Presidents: The Transformation of the American Presidency from Theodore Roosevelt to George W. Bush. London: Penguin, 2006.
MLA-Zitierstil (9. Ausg.)Graubard, Stephen Richards. The Presidents: The Transformation of the American Presidency from Theodore Roosevelt to George W. Bush. Penguin, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.