Mayfield, J. The numbers writer: A portrait / Julian Mayfield. American essays - Afro-american authors.(1992).
Chicago-Zitierstil (17. Ausg.)Mayfield, Julian. "The Numbers Writer: A Portrait / Julian Mayfield." American Essays - Afro-american Authors.(1992) .
MLA-Zitierstil (8. Ausg.)Mayfield, Julian. "The Numbers Writer: A Portrait / Julian Mayfield." American Essays - Afro-american Authors.(1992), .
警告：这些引文格式不一定是100％准确.