CAMBRIDGE ENGLISH LANGUAGE ASSESSMENT. (2016). IELTS11 ACADEMIC WITH ANSWERS WITH CD. CAMBRIDGE UNIVERSITY PRESS.
Chicago-referens (17:e uppl.)CAMBRIDGE ENGLISH LANGUAGE ASSESSMENT. IELTS11 ACADEMIC WITH ANSWERS WITH CD. NOIDA: CAMBRIDGE UNIVERSITY PRESS, 2016.
MLA-referens (9:e uppl.)CAMBRIDGE ENGLISH LANGUAGE ASSESSMENT. IELTS11 ACADEMIC WITH ANSWERS WITH CD. CAMBRIDGE UNIVERSITY PRESS, 2016.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.