Cita APA (7th ed.)
Mackey, A., & Gass, S. M. Research Methods in Second Language Acquisition: A Practical Guide. Wiley-Blackwell.
Cita Chicago (17th ed.)
Mackey, Alison, i Susan M. Gass. Research Methods in Second Language Acquisition: A Practical Guide. Oxford, Inglaterra: Wiley-Blackwell.
Cita MLA (9th ed.)
Mackey, Alison, i Susan M. Gass. Research Methods in Second Language Acquisition: A Practical Guide. Wiley-Blackwell.
Atenció: Aquestes cites poden no estar 100% correctes.