Cita APA (7a ed.)
ebrary, Inc, Kessler, J., & Keatinge, D. (2009). Research in second language acquisition: Empirical evidence across languages. Cambridge Scholars.
Cita Chicago Style (17a ed.)
ebrary, Inc, Jörg-U Kessler, y Dagmar Keatinge. Research in Second Language Acquisition: Empirical Evidence Across Languages. Newcastle upon Tyne: Cambridge Scholars, 2009.
Cita MLA (9a ed.)
ebrary, Inc, et al. Research in Second Language Acquisition: Empirical Evidence Across Languages. Cambridge Scholars, 2009.
Precaución: Estas citas no son 100% exactas.