APA (7th ed.) Citation

Cowie, A. P., & Mackin, P. (1975). Oxford dictionary of current idiomatic english. Oxford University Press.

Chicago Style (17th ed.) Citation

Cowie, A. P., and P. Mackin. Oxford Dictionary of Current Idiomatic English. Oxford: Oxford University Press, 1975.

MLA (8th ed.) Citation

Cowie, A. P., and P. Mackin. Oxford Dictionary of Current Idiomatic English. Oxford University Press, 1975.