Nadel, A. (1988). Invisible criticism: Ralph Ellison and the American canon. University of Iowa Press.
芝加哥风格引文Nadel, Alan. Invisible Criticism: Ralph Ellison and the American Canon. Iowa City: University of Iowa Press, 1988.
MLA引文Nadel, Alan. Invisible Criticism: Ralph Ellison and the American Canon. University of Iowa Press, 1988.
警告：这些引文格式不一定是100％准确.