Cita APA (7th ed.)

McMahon, A. M. S. (1994). Understanding language change. U. Pr..

Cita Chicago (17th ed.)

McMahon, April M. S. Understanding Language Change. Cambridge: U. Pr., 1994.

Cita MLA (9th ed.)

McMahon, April M. S. Understanding Language Change. U. Pr., 1994.