Cita APA (7a ed.)

Klippel, F. (2007). Keep talking. Cambridge University Press.

Cita Chicago Style (17a ed.)

Klippel, Friederike. Keep Talking. Cambridge: Cambridge University Press, 2007.

Cita MLA (9a ed.)

Klippel, Friederike. Keep Talking. Cambridge University Press, 2007.