Richards, Jack C <br/><br/>
Changes: English For International Communication 3. Workbook 

 - Cambridge  Cambridge University Press  1995 
 - 88 p.: ill.; 30 cm. 
<br/><br/><label>ISBN: </label>0521449340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers<br/>International Communication