APA (7th ed.) Citation

Patterson, C. P. (1947). Presidential government in the United States: The unwritten constitution. University of North Carolina Press.

Chicago Style (17th ed.) Citation

Patterson, Caleb Perry. Presidential Government in the United States: The Unwritten Constitution. Chapel Hill: University of North Carolina Press, 1947.

MLA (9th ed.) Citation

Patterson, Caleb Perry. Presidential Government in the United States: The Unwritten Constitution. University of North Carolina Press, 1947.