Richards, Jack C. <br/><br/>
Changes [Sound Recording]: Intro Class Cassette 

 - Cambridge :  Cambridge University Press,  1998. 
 - 2 sound cassettes (108 mins): analog 
<br/><br/><label>ISBN: </label>9780521626415 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers<br/>International Communication