APA (7th ed.) Citation

Aitchison, J. (1991). Language change: Progress or decay? (2nd edition.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decay? 2nd edition. Cambridge: Cambridge University Press, 1991.

MLA (8th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decay? 2nd edition. Cambridge University Press, 1991.

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