Johnson, K. (2001). An introduction to foreign language learning and teaching. Longman.
Lua i Stíl Chicago (17ú heag.)Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Harlow, Essex, London ; New York: Longman, 2001.
Lua MLA (8ú heag.)Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Longman, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.