APA aipamena

Hopkins, A. G. (2018). American Empire: A Global History (America in the World). Princeton University Press.

Chicago Style aipamena

Hopkins, A. G. American Empire: A Global History (America in the World). New Jersey: Princeton University Press, 2018.

MLA aipamena

Hopkins, A. G. American Empire: A Global History (America in the World). Princeton University Press, 2018.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.