APA (7th ed.) Citation

Russell, B. (1972). The principles of mathematics (2. ed. 1937, 9. impression.). Allen & Unwin.

Chicago Style (17th ed.) Citation

Russell, Bertrand. The Principles of Mathematics. 2. ed. 1937, 9. impression. London: Allen & Unwin, 1972.

MLA (9th ed.) Citation

Russell, Bertrand. The Principles of Mathematics. 2. ed. 1937, 9. impression. Allen & Unwin, 1972.

Warning: These citations may not always be 100% accurate.