Cita APA (7a ed.)

Whitehead, A. N., & Russell, B. (1962). Principia mathematica: To *56 ([Paperback ed.].). University Press.

Cita Chicago Style (17a ed.)

Whitehead, Alfred North, y Bertrand Russell. Principia Mathematica: To *56. [Paperback ed.]. Cambridge: University Press, 1962.

Cita MLA (9a ed.)

Whitehead, Alfred North, y Bertrand Russell. Principia Mathematica: To *56. [Paperback ed.]. University Press, 1962.