Fries, C. C. (1945). Teaching and learning English as a foreign language. University of Michigan Press.
芝加哥风格引文Fries, Charles Carpenter. Teaching and Learning English as a Foreign Language. Ann Arbor, MI: University of Michigan Press, 1945.
MLA引文Fries, Charles Carpenter. Teaching and Learning English as a Foreign Language. University of Michigan Press, 1945.
警告：这些引文格式不一定是100％准确.