Whitehead, A. N., & Russell, B. (1963). Principia mathematica 3v (2nd ed.).
Chicago Edition CitationWhitehead, Alfred North, and Bertrand Russell. Principia Mathematica 3v. 2nd ed. 1963.
MLA Edition CitationWhitehead, Alfred North, and Bertrand Russell. Principia Mathematica 3v. 2nd ed. 1963.
Warning: These citations may not always be 100% accurate.