Malcolm X's speech at the Oxford Union debate (December 3, 1964) as quoted in Saladin Ambar "Malcolm X at Oxford Union: Racial Politics in a Global Era" (p. 171), 2013.
"The Ballot or The Bullet (Cleveland Version)". Malcolm X's speech at Cory Methodist Church in Cleveland, Ohio (April 3, 1964) as quoted in "Malcolm X Speaks: Selected Speeches and Statements" edited by George Breitman (pp. 23-44), 1965.
Nancy Spannaus, Christopher White, Alexander Hamilton, Thomas More, Henry VIII (2015). “The Political Economy of the American Revolution”, p.282, Executive Intelligence Review