Ambar, S. M. (2012). How governors built the modern American presidency. University of Pennsylvania Press.
Citace podle Chicago (17th ed.)Ambar, Saladin M. How Governors Built the Modern American Presidency. Philadelphia: University of Pennsylvania Press, 2012.
Citace podle MLA (9th ed.)Ambar, Saladin M. How Governors Built the Modern American Presidency. University of Pennsylvania Press, 2012.
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