Graff, W. L. (1964). Language and languages: An introduction to linguistics. Russell and Russell.
芝加哥风格引文Graff, Willem Laurens. Language and Languages: An Introduction to Linguistics. New York: Russell and Russell, 1964.
MLA引文Graff, Willem Laurens. Language and Languages: An Introduction to Linguistics. Russell and Russell, 1964.
警告：这些引文格式不一定是100％准确.