APA Citation

Trask, R. L. 1. (1997). The Penguin guide to punctuation. London ; New York: Penguin.

Chicago Style Citation

Trask, R. L. 1944-. The Penguin Guide to Punctuation. London ; New York: Penguin, 1997.

MLA Citation

Trask, R. L. 1944-. The Penguin Guide to Punctuation. London ; New York: Penguin, 1997.

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