Key words for IELTS / 
 Collins Cobuild key words for IELTS 
[senior editor, Julie Moore] 
 - Glasgow :  HarperCollins,  2011 
 - 2 v. ;  20 cm. 
 - Collins COBUILD .
<br/><br/> "Cobuild: The world's largest language corpus"--Cover 
<br/><br/>Book 1: Starter -- Book 3: Advanced 
<br/><br/><label>ISBN: </label>9780007365456 (bk. 1) 9780007365470 (bk. 3) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International English Language Testing System--Study guides<br/>English language--Textbooks for foreign speakers<br/>Vocabulary