Trask, R. L. (2000). The Penguin dictionary of English grammar. Penguin.
芝加哥风格引文Trask, R. L. The Penguin Dictionary of English Grammar. London ; New York: Penguin, 2000.
MLA引文Trask, R. L. The Penguin Dictionary of English Grammar. Penguin, 2000.
警告：这些引文格式不一定是100％准确.