APA (7th ed.) Citation
Gulland, D. M., & Hinds-Howell, D. (1986). <The> Penguin Dictionary of English Idioms (1. ed.). Penguin Books.
Chicago Style (17th ed.) Citation
Gulland, Daphne M., and David Hinds-Howell. <The> Penguin Dictionary of English Idioms. 1. ed. London: Penguin Books, 1986.
MLA (9th ed.) Citation
Gulland, Daphne M., and David Hinds-Howell. <The> Penguin Dictionary of English Idioms. 1. ed. Penguin Books, 1986.
Warning: These citations may not always be 100% accurate.