@BOOK{ Book!D - 100790933,
AUTHOR = "/ Friederike Klippel",
TITLE = "Keep talking ",
LIBRARY= "کتابخانه دانشکده زبان ها و ادبیات خارجی (دانشگاه تهران)",
SUBJECT = "Language and languages -- Study and teaching -- Problems, exercises, etc",
URL = "/book/100790933/Keep-talking/"}