APA (7th ed.) Citation

Aitchison, J. (1993). Language change: Progress or decay? (2. ed., reprinted.). Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decay? 2. ed., reprinted. Cambridge u.a: Cambridge Univ. Press, 1993.

MLA (9th ed.) Citation

Aitchison, Jean. Language Change: Progress or Decay? 2. ed., reprinted. Cambridge Univ. Press, 1993.