Whitehead, A. N., & Russell, B. (1962). Principia mathematica, to *56. Cambridge: Cambridge University Press.
Chicago Style CitationWhitehead, Alfred North, and Bertrand Russell. Principia Mathematica, to *56. Cambridge: Cambridge University Press, 1962.
MLA CitationWhitehead, Alfred North, and Bertrand Russell. Principia Mathematica, to *56. Cambridge: Cambridge University Press, 1962.
Warning: These citations may not always be 100% accurate.