Cita APA (7a ed.)

Marden, O. S. (1911). Self-Investment. Marden, Orison Swett.

Cita Chicago Style (17a ed.)

Marden, Orison Swett. Self-Investment. New York: Marden, Orison Swett, 1911.

Cita MLA (9a ed.)

Marden, Orison Swett. Self-Investment. Marden, Orison Swett, 1911.