Cita APA (7a ed.)

Aitchison, J. (1998). Language change: Progress or decay? (2nd ed.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Aitchison, Jean. Language Change: Progress or Decay? 2nd ed. Cambridge, United Kingdom: Cambridge University Press, 1998.

Cita MLA (9a ed.)

Aitchison, Jean. Language Change: Progress or Decay? 2nd ed. Cambridge University Press, 1998.