APA (7th ed.) Zitazioa

OLMSTEAD, A. (1948). History of the Persian empire. University Press.

Chicago Style (17th ed.) Zitazioa

OLMSTEAD, A.T. History of the Persian Empire. Chicago: University Press, 1948.

MLA (9th ed.) Zitazioa

OLMSTEAD, A.T. History of the Persian Empire. University Press, 1948.