APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Kessler, Jörg-U, and Dagmar Keatinge. Research in Second Language Acquisition: Empirical Evidence Across Languages. Cambridge Scholars, 2009.