(Carey) - Carey, Charles W., Jr., and Ian C. Friedman. "Pulitzer, Joseph." American Inventors, Entrepreneurs, and Business Visionaries, Revised Edition, American Biographies. New York: Facts On File, Inc., 2011. American History Online. Facts On File, Inc. Web. 6 April. 2014.
(Frisna) - Frisina, Ellen Tashie. "Pulitzer, Joseph." In Hoogenboom, Ari, and Gary B. Nash, eds. Encyclopedia of American History: The Development of the Industrial United States, 1870 to 1899, Revised Edition (Volume VI). New York: Facts On File, Inc., 2010. American History Online. Facts On File, Inc. Web. 6 April. 2014.
(Barney) - Barney, Brett, and Lisa Paddock. "Pulitzer, Joseph." Encyclopedia of American Literature: The Age of Romanticism and Realism, 1816–1895, vol. 2, Revised Edition. New York: Facts On File, Inc., 2008. American History Online. Facts On File, Inc. Web. 6 April. 2014.
(Frisna) - Frisina, Ellen Tashie. "Pulitzer, Joseph." In Hoogenboom, Ari, and Gary B. Nash, eds. Encyclopedia of American History: The Development of the Industrial United States, 1870 to 1899, Revised Edition (Volume VI). New York: Facts On File, Inc., 2010. American History Online. Facts On File, Inc. Web. 6 April. 2014.
(Barney) - Barney, Brett, and Lisa Paddock. "Pulitzer, Joseph." Encyclopedia of American Literature: The Age of Romanticism and Realism, 1816–1895, vol. 2, Revised Edition. New York: Facts On File, Inc., 2008. American History Online. Facts On File, Inc. Web. 6 April. 2014.