Wajnryb, R. (1993). Classroom observation tasks: A resource book for language teachers and trainers. Press Syndicate of the University of Cambridge.
Citace podle Chicago (17th ed.)Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Cambridge: Press Syndicate of the University of Cambridge, 1993.
Citace podle MLA (9th ed.)Wajnryb, Ruth. Classroom Observation Tasks: A Resource Book for Language Teachers and Trainers. Press Syndicate of the University of Cambridge, 1993.
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