Friderike, Klippel <br/><br/>
Keep talking 

 - 1a 
 - Estados Unidos  Cambridge university press  1984 
 - 202 p. 
<br/><br/><label>ISBN: </label>521278716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language
<br/><br/><label>LC Class. No.: </label>PE1128  / K55