Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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