Klippel, Friederike. Keep talking : communicative fluency activities for language teaching / Friederike Klippel. - Cambridge :;New York Cambridge University Press, 1984 - 202 p. : ill. 24 cm. Bibliography: p. 199-202. ISBN: 0521278716 (pbk.) Subjects--Topical Terms: Languages;Englischunterricht.--Study Dewey Class. No.: 428.34076 / KIK