Long, M. H., & Doughty, C. (2009). The handbook of language teaching. Wiley-Blackwell. https://doi.org/10.1002/9781444315783
Lua i Stíl Chicago (17ú heag.)Long, Michael H., agus Catherine Doughty. The Handbook of Language Teaching. Chichester, U.K: Wiley-Blackwell, 2009. https://doi.org/10.1002/9781444315783.
Lua MLA (9ú heag.)Long, Michael H., agus Catherine Doughty. The Handbook of Language Teaching. Wiley-Blackwell, 2009. https://doi.org/10.1002/9781444315783.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.