Citazione Stile APA (7a Edizione)

Hobson, A. (2001). The Oxford dictionary of difficult words. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Hobson, Archie. The Oxford Dictionary of Difficult Words. New York: Oxford University Press, 2001.

Citatione MLA (8a ed.)

Hobson, Archie. The Oxford Dictionary of Difficult Words. Oxford University Press, 2001.