Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.