Cita APA

Klippel, F., & Klippel, F. (1984). Keep talking: Communicative fluency activities for languaje teaching (1. edition.). Cambridge University Press.

Citación estilo Chicago

Klippel, Friederike, y Friederike Klippel. Keep Talking: Communicative Fluency Activities for Languaje Teaching. 1. edition. Cambridge University Press, 1984.

Cita MLA

Klippel, Friederike, y Friederike Klippel. Keep Talking: Communicative Fluency Activities for Languaje Teaching. 1. edition. Cambridge University Press, 1984.