Patterson, F. In defense of Cassius Clay: Floyd Patterson. American essays - Afro-american authors.(1992).
Chicago-Zitierstil (17. Ausg.)Patterson, Floyd. "In Defense of Cassius Clay: Floyd Patterson." American Essays - Afro-american Authors.(1992) .
MLA-Zitierstil (8. Ausg.)Patterson, Floyd. "In Defense of Cassius Clay: Floyd Patterson." American Essays - Afro-american Authors.(1992), .
警告:这些引文格式不一定是100%准确.