APA (7th ed.) Citation

Trask, R. L. (2000). The Penguin dictionary of English grammar. Penguin.

Chicago Style (17th ed.) Citation

Trask, R. L. The Penguin Dictionary of English Grammar. London ; New York: Penguin, 2000.

MLA (9th ed.) Citation

Trask, R. L. The Penguin Dictionary of English Grammar. Penguin, 2000.

Warning: These citations may not always be 100% accurate.