Cita APA (7a ed.)

Davies, E. W. (2015). Numbers: The road to freedom. Sheffield Phoenix.

Cita Chicago Style (17a ed.)

Davies, Eryl W. Numbers: The Road to Freedom. Sheffield: Sheffield Phoenix, 2015.

Cita MLA (9a ed.)

Davies, Eryl W. Numbers: The Road to Freedom. Sheffield Phoenix, 2015.