Allwright, D., & Bailey, K. (1991). Focus on the language classroom: An introduction to classroom research for language teachers. Cambridge university press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Allwright, Dick, και K. Bailey. Focus on the Language Classroom: An Introduction to Classroom Research for Language Teachers. Cambridge: Cambridge university press, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)Allwright, Dick, και K. Bailey. Focus on the Language Classroom: An Introduction to Classroom Research for Language Teachers. Cambridge university press, 1991.
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