Citazione Stile APA (7a Edizione)

Nicholson, M. (1957). A dictionary of american - english usage. Oxford University.

Citazione stile Chigago Style (17a edizione)

Nicholson, Margaret. A Dictionary of American - English Usage. Nueva York: Oxford University, 1957.

Citatione MLA (9a ed.)

Nicholson, Margaret. A Dictionary of American - English Usage. Oxford University, 1957.