Blumenthal, J. C. (1994). English 3200 with writing applications: A programmed course in grammar and usage (4th college ed.). Harcourt Brace College Publishers.
芝加哥风格引文Blumenthal, Joseph C. English 3200 with Writing Applications: A Programmed Course in Grammar and Usage. 4th college ed. Fort Worth, Texas: Harcourt Brace College Publishers, 1994.
MLA引文Blumenthal, Joseph C. English 3200 with Writing Applications: A Programmed Course in Grammar and Usage. 4th college ed. Harcourt Brace College Publishers, 1994.
警告：这些引文格式不一定是100％准确.