APA (7th ed.) Citation

Gulland, D. M. H. (2002). The penguin dictionary of English idoms. Penguin Books.

Chicago Style (17th ed.) Citation

Gulland, Daphne M.& Hinds-Howell. The Penguin Dictionary of English Idoms. London: Penguin Books, 2002.

MLA (9th ed.) Citation

Gulland, Daphne M.& Hinds-Howell. The Penguin Dictionary of English Idoms. Penguin Books, 2002.