Lua APA (7ú heag.)

ebrary, Inc, Kessler, J., & Keatinge, D. (2009). Research in second language acquisition: Empirical evidence across languages. Cambridge Scholars.

Lua i Stíl Chicago (17ú heag.)

ebrary, Inc, Jörg-U Kessler, agus Dagmar Keatinge. Research in Second Language Acquisition: Empirical Evidence Across Languages. Newcastle upon Tyne: Cambridge Scholars, 2009.

Lua MLA (9ú heag.)

ebrary, Inc, et al. Research in Second Language Acquisition: Empirical Evidence Across Languages. Cambridge Scholars, 2009.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.