Johnson, K. (2005). Expertise in second language learning and teaching. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Johnson, Keith. Expertise in Second Language Learning and Teaching. Basingstoke [England] ; New York: Palgrave Macmillan, 2005.
Lua MLA (8ú heag.)Johnson, Keith. Expertise in Second Language Learning and Teaching. Palgrave Macmillan, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.