Cita APA (7th ed.)

Foner, P. S. (1958). Mark Twain: Social critic. International Publishers.

Cita Chicago (17th ed.)

Foner, Philip S. Mark Twain: Social Critic. New York: International Publishers, 1958.

Cita MLA (8th ed.)

Foner, Philip S. Mark Twain: Social Critic. International Publishers, 1958.