APA (7th ed.) Citation

Firth, J. R., & Firth, J. R. (1964). The tongues of men, and Speech. Oxford University Press.

Chicago Style (17th ed.) Citation

Firth, J. R., and John Rupert Firth. The Tongues of Men, and Speech. London: Oxford University Press, 1964.

MLA (8th ed.) Citation

Firth, J. R., and John Rupert Firth. The Tongues of Men, and Speech. Oxford University Press, 1964.