Citazione Stile APA (7a Edizione)

Ferguson, N. (2006). The war of the world: Twentieth-century conflict and the descent of the west. Penguin Books.

Citazione stile Chigago Style (17a edizione)

Ferguson, Niall. The War of the World: Twentieth-century Conflict and the Descent of the West. New York: Penguin Books, 2006.

Citatione MLA (9a ed.)

Ferguson, Niall. The War of the World: Twentieth-century Conflict and the Descent of the West. Penguin Books, 2006.