APA (7th ed.) Zitazioa

Harrison, M. (2009). Oxford living grammar: Pre-intermediate. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Harrison, Mark. Oxford Living Grammar: Pre-intermediate. New York: Oxford University Press, 2009.

MLA (9th ed.) Zitazioa

Harrison, Mark. Oxford Living Grammar: Pre-intermediate. Oxford University Press, 2009.