Ferguson, N. (2006). The war of the world: Twentieth-century conflict and the descent of the west. Penguin Books.
Citação norma ChicagoFerguson, Niall. The War of the World: Twentieth-century Conflict and the Descent of the West. New York: Penguin Books, 2006.
Citação norma MLAFerguson, Niall. The War of the World: Twentieth-century Conflict and the Descent of the West. Penguin Books, 2006.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.