APA (7e ed.) Bronvermelding

Ambar, S. M. (2012). How governors built the modern American presidency. University of Pennsylvania Press.

Chicago (17e ed.) Bronvermelding

Ambar, Saladin M. How Governors Built the Modern American Presidency. Philadelphia: University of Pennsylvania Press, 2012.

MLA (9e ed.) Bronvermelding

Ambar, Saladin M. How Governors Built the Modern American Presidency. University of Pennsylvania Press, 2012.