Cita APA (7a ed.)

Berdiaev, N., & French, R. M. (1944). Slavery and freedom. Bles.

Cita Chicago Style (17a ed.)

Berdiaev, Nikolai, y Reginald Michael French. Slavery and Freedom. London: Bles, 1944.

Cita MLA (9a ed.)

Berdiaev, Nikolai, y Reginald Michael French. Slavery and Freedom. Bles, 1944.