APA (7th ed.) Zitazioa

Hobson, A. (2003). The Oxford Dictionary of Difficult Words. Oxford.

Chicago Style (17th ed.) Zitazioa

Hobson, Archie. The Oxford Dictionary of Difficult Words. New Delhi: Oxford, 2003.

MLA (9th ed.) Zitazioa

Hobson, Archie. The Oxford Dictionary of Difficult Words. Oxford, 2003.