Holzer, H., Symonds, C. L., & Williams, F. J. (2015). Exploring Lincoln: Great historians reappraise our greatest president (First edition.). New York: Fordham University Press.

Holzer, Harold,, Craig L. Symonds, and Frank J. Williams. Exploring Lincoln: Great Historians Reappraise Our Greatest President. First edition. New York: Fordham University Press, 2015.

Holzer, Harold,, Craig L. Symonds, and Frank J. Williams. Exploring Lincoln: Great Historians Reappraise Our Greatest President. First edition. New York: Fordham University Press, 2015.