Cita APA (7th ed.)

Perkins, M. R. (2010). Pragmatic impairment. Cambridge University Press.

Cita Chicago (17th ed.)

Perkins, Michael R. Pragmatic Impairment. Cambridge, [England]: Cambridge University Press, 2010.

Cita MLA (9th ed.)

Perkins, Michael R. Pragmatic Impairment. Cambridge University Press, 2010.