APA-referens (7:e uppl.)

Rosen, J. (2018). William Howard Taft: The American Presidents Series: The 27th President, 1909-1913. Times Books, Henry Holt and Company.

Chicago-referens (17:e uppl.)

Rosen, Jeffrey. William Howard Taft: The American Presidents Series: The 27th President, 1909-1913. New York: Times Books, Henry Holt and Company, 2018.

MLA-referens (9:e uppl.)

Rosen, Jeffrey. William Howard Taft: The American Presidents Series: The 27th President, 1909-1913. Times Books, Henry Holt and Company, 2018.