Associated Press. "Clay Handed Conviction in Draft Case." Toledo Blade 21 June 1967: 41. Print.
Baskir, Lawrence M.; Strauss, William A. (1987). Chance and Circumstance: The Draft, the War, and the Vietnam Generation. New York: Alfred A. Knopf
Fisher, Anthony C. (1969). "The Cost of the Draft and the Cost of Ending the Draft". American Economic Review 59 (3).
John Kifner (May 4, 1970). "4 Kent State Students Killed by Troops". The New York Times. Retrieved May 5, 2010.
Kent State University Libraries, "Chronology, May 1–4, 1970". Kent State University. Retrieved April 27, 2008
Satin, Mark, ed. (1968). Manual for Draft-Age Immigrants to Canada. Toronto: House of Anansi Press, 2nd ed., pp. 83–84
Schulzinger, Robert D. (2006). A Time for Peace: The Legacy of the Vietnam War. New York: Oxford University Press.
Sutsakhan, Sak Lt Gen.The Khmer Republic at War. Washington D.C.: United States Army Center of Military History, 1984, p. 174.
Shalit, Nevin I. "Muhammad Ali: Losing the Real Title | Sports | The Harvard Crimson." Muhammad Ali: Losing the Real Title | Sports | The Harvard Crimson. The Crimson, 15 July 1980. Web. 04 Nov. 2016.
"United States Code: Title 50a,462. Offenses and Penalties | LII / Legal Information Institute." United States Code: Title 50a,462. Offenses and Penalties | LII / Legal Information Institute. N.p., n.d. Web. 04 Nov. 2016.