Nettels, E. (1988). Language, race, and social class in Howells's America. The University Press of Kentucky.
芝加哥风格引文Nettels, Elsa. Language, Race, and Social Class in Howells's America. Lexington, Kentucky: The University Press of Kentucky, 1988.
MLA引文Nettels, Elsa. Language, Race, and Social Class in Howells's America. The University Press of Kentucky, 1988.
警告：这些引文格式不一定是100％准确.