Patterson, F. In defense of Cassius Clay: Floyd Patterson. American essays - Afro-american authors.(1992).
Cita Chicago (17th ed.)Patterson, Floyd. "In Defense of Cassius Clay: Floyd Patterson." American Essays - Afro-american Authors.(1992) .
Cita MLA (8th ed.)Patterson, Floyd. "In Defense of Cassius Clay: Floyd Patterson." American Essays - Afro-american Authors.(1992), .
Atenció: Aquestes cites poden no estar 100% correctes.