APA-viite (7. p.)
(2007). Cambridge IELTS 6: Examination Papers From University Of Cambridge ESOL Examinations : English For Speakers Of Other Languages. Cambridge univeristy.
Chicago-viite (17. p.)
Cambridge IELTS 6: Examination Papers From University Of Cambridge ESOL Examinations : English For Speakers Of Other Languages. Cambridge,UK: Cambridge univeristy, 2007.
MLA-viite (9. p.)
Cambridge IELTS 6: Examination Papers From University Of Cambridge ESOL Examinations : English For Speakers Of Other Languages. Cambridge univeristy, 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.