Cita APA (7th ed.)

Beaver, H. L. e. (1959). American crtical essays, twentieth century. Oxford University Press.

Cita Chicago (17th ed.)

Beaver, Harold Lowther ed. American Crtical Essays, Twentieth Century. London: Oxford University Press, 1959.

Cita MLA (9th ed.)

Beaver, Harold Lowther ed. American Crtical Essays, Twentieth Century. Oxford University Press, 1959.