Cita APA (7th ed.)
ebrary, Inc, Kessler, J., & Keatinge, D. (2009). Research in second language acquisition: Empirical evidence across languages. Cambridge Scholars.
Cita Chicago (17th ed.)
ebrary, Inc, Jörg-U Kessler, i Dagmar Keatinge. Research in Second Language Acquisition: Empirical Evidence Across Languages. Newcastle upon Tyne: Cambridge Scholars, 2009.
Cita MLA (9th ed.)
ebrary, Inc, et al. Research in Second Language Acquisition: Empirical Evidence Across Languages. Cambridge Scholars, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.