Gardiner, A. (1990). The poetry of William Wordsworth. Penguin Books.
芝加哥风格引文Gardiner, Alan. The Poetry of William Wordsworth. London, England ; New York, N.Y., USA: Penguin Books, 1990.
MLA引文Gardiner, Alan. The Poetry of William Wordsworth. Penguin Books, 1990.
警告：这些引文格式不一定是100％准确.