Cita APA (7th ed.)

Berdyaer, N. (1944). Slavery and Freedom. Charles Scribners.

Cita Chicago (17th ed.)

Berdyaer, Nikolai. Slavery and Freedom. New York, Estados Unidos: Charles Scribners, 1944.

Cita MLA (9th ed.)

Berdyaer, Nikolai. Slavery and Freedom. Charles Scribners, 1944.