Key words for IELTS : Book 2 Improver Collins cobuild : key words for IELTS [senior editor, Julie Moore]. - 1st ed. - London : Harper Collins, 2011. - 3 v. ; 20 cm. - Collins Cobuild . bk. 1. Starter -- bk. 2. Improver -- bk. 3. Advanced. ISBN: 9780007365463 Subjects--Topical Terms: Vocabulary.English language--Glossaries, vocabularies, etc.International English Language Testing System--Study guides. LC Class. No.: PE1128 / C655 2011 Dewey Class. No.: 428.24