APA (7th ed.) Citation

Cowie, A. P., Mackin, R., & McCaig, I. R. (1996). Oxford dictionary of English idioms. Oxford University.

Chicago Style (17th ed.) Citation

Cowie, A P., R. Mackin, and I R. McCaig. Oxford Dictionary of English Idioms. Oxford: Oxford University, 1996.

MLA (9th ed.) Citation

Cowie, A P., et al. Oxford Dictionary of English Idioms. Oxford University, 1996.