Harrison, M. (2009). Oxford living grammar: Pre-intermediate. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Harrison, Mark. Oxford Living Grammar: Pre-intermediate. New York: Oxford University Press, 2009.
Lua MLA (9ú heag.)Harrison, Mark. Oxford Living Grammar: Pre-intermediate. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.