Wajnryb, R. (1992). Classroom observation tasks: A resource book for language teachers and trainers. Cambridge University.
Chicago Style (17. basım) AtıfWajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge: Cambridge University, 1992.
MLA (9th ed.) AtıfWajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge University, 1992.
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