Russell, B. (1973). Principia mathematica to 56. At the University Press.
Chicago Style CitationRussell, Bertrand. Principia Mathematica to 56. At the University Press, 1973.
MLA CitationRussell, Bertrand. Principia Mathematica to 56. At the University Press, 1973.
Warning: These citations may not always be 100% accurate.