- Warren, Robert Penn. All the King's Men. New York: Harvest, 1946.
- "Robert Penn Warren." Academy of American Poets. 8/22/18. <https://www.poets.org/poetsorg/poet/robert-penn-warren>.
- Bohner, Charles. "Robert Penn Warren's Life and Career." University of Illinois. 8/22/18. <http://www.english.illinois.edu/maps/poets/s_z/warren/life.htm>.
- Encyclopedia Britannica. "Robert Penn Warren, American Writer." Encyclopedia Britannica. 1998. 8/22/18. <...
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