Cita APA (7a ed.)

Ford, H., & Crowther, S. (2006). My life and work. [s.n.].

Cita Chicago Style (17a ed.)

Ford, Henry, y Samuel Crowther. My Life and Work. New York: [s.n.], 2006.

Cita MLA (9a ed.)

Ford, Henry, y Samuel Crowther. My Life and Work. [s.n.], 2006.