APA (7th ed.) Citation

Allen, R. e. (1990). The concise oxford dictionary of current English (8th ed.). Clarendon Press.

Chicago Style (17th ed.) Citation

Allen, R.E ed. The Concise Oxford Dictionary of Current English. 8th ed. Oxford: Clarendon Press, 1990.

MLA (8th ed.) Citation

Allen, R.E ed. The Concise Oxford Dictionary of Current English. 8th ed. Clarendon Press, 1990.