Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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