Friederike Klippel. Keep Talking: Communicative Fluency Activities for Language Teaching. Cambridge University Press.
استشهاد بنمط شيكاغوFriederike Klippel. Keep Talking: Communicative Fluency Activities for Language Teaching. New Delhi: Cambridge University Press.
MLA استشهادFriederike Klippel. Keep Talking: Communicative Fluency Activities for Language Teaching. Cambridge University Press.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.