Blumenthal, J. C. (1962). English 3200: A programmed course in grammar and usage. Harcourt, Brace & World.
芝加哥风格引文Blumenthal, Joseph C. English 3200: A Programmed Course in Grammar and Usage. New York: Harcourt, Brace & World, 1962.
MLA引文Blumenthal, Joseph C. English 3200: A Programmed Course in Grammar and Usage. Harcourt, Brace & World, 1962.
警告：这些引文格式不一定是100％准确.