APA (7th ed.) Zitazioa
(2014). Empires and nations from the eighteenth to the twentieth century. Cambridge Scholars Publishing.
Chicago Style (17th ed.) Zitazioa
Empires and Nations from the Eighteenth to the Twentieth Century. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.
MLA (9th ed.) Zitazioa
Empires and Nations from the Eighteenth to the Twentieth Century. Cambridge Scholars Publishing, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.