APA (7th ed.) Zitazioa

Cambridge University Press. (2026). Cambridge IELTS 20 with Answers: Academic: Fully Update Version: Authentic Practice Tests (Fully Updated Version.). Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Cambridge University Press. Cambridge IELTS 20 with Answers: Academic: Fully Update Version: Authentic Practice Tests. Fully Updated Version. Cambridge: Cambridge University Press, 2026.

MLA (9th ed.) Zitazioa

Cambridge University Press. Cambridge IELTS 20 with Answers: Academic: Fully Update Version: Authentic Practice Tests. Fully Updated Version. Cambridge University Press, 2026.