APA (7th ed.) Citation

Keynes, J. M. (1921). A treatise on probability. Macmillan and co., limited.

Chicago Style (17th ed.) Citation

Keynes, John Maynard. A Treatise on Probability. London: Macmillan and co., limited, 1921.

MLA (9th ed.) Citation

Keynes, John Maynard. A Treatise on Probability. Macmillan and co., limited, 1921.

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