Greenberg, K. L. (1994). Paragraphs and essays. HarperCollins College Publishers.
芝加哥风格引文Greenberg, Karen L. Paragraphs and Essays. New York: HarperCollins College Publishers, 1994.
MLA引文Greenberg, Karen L. Paragraphs and Essays. HarperCollins College Publishers, 1994.
警告：这些引文格式不一定是100％准确.