APA (7th ed.) Zitazioa

May, P. (2004). IELTS: Practice tests. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

May, Peter. IELTS: Practice Tests. New York: Oxford University Press, 2004.

MLA (9th ed.) Zitazioa

May, Peter. IELTS: Practice Tests. Oxford University Press, 2004.