Styl cytowania APA

Whitehead, A. N., & Russell, B. (1927). Principia mathematica. V 3.- 2nd ed. University Press.

Styl cytowania Chicago

Whitehead, Alfred North, i Bertrand Russell. Principia Mathematica. V 3.- 2nd Ed. Cambridge: University Press, 1927.

Styl cytowania MLA

Whitehead, Alfred North, i Bertrand Russell. Principia Mathematica. V 3.- 2nd Ed. University Press, 1927.