Cita APA

Whitehead, A. N. 1., & Russell, B. 1. (1962). Principia mathematica to 56 ([2. ed].). Cambridge: University Press.

Citación estilo Chicago

Whitehead, Alfred North 1861-1947, y Bertrand 1872-1970 Russell. Principia Mathematica to 56. [2. ed]. Cambridge: University Press, 1962.

Cita MLA

Whitehead, Alfred North 1861-1947, y Bertrand 1872-1970 Russell. Principia Mathematica to 56. [2. ed]. Cambridge: University Press, 1962.