APA (7th ed.) Citation

Aitchison, J. (2001). Language change: Progress or decayn (3rd ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decayn. 3rd ed. Cambridge, Eng: Cambridge University Press, 2001.

MLA (9th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decayn. 3rd ed. Cambridge University Press, 2001.