APA (7th ed.) Zitazioa

Price, R. (1997). Napoleon Hill and the Second Empire. Routledge.

Chicago Style (17th ed.) Zitazioa

Price, Roger. Napoleon Hill and the Second Empire. London: Routledge, 1997.

MLA (9th ed.) Zitazioa

Price, Roger. Napoleon Hill and the Second Empire. Routledge, 1997.