Hallows, R., & Edwards, L. (2007). Teacher's book innovations: A course in natural english. Thomson.
Chicago-viite (17. p.)Hallows, Richard, ja Lynda Edwards. Teacher's Book Innovations: A Course in Natural English. London: Thomson, 2007.
MLA-viite (9. p.)Hallows, Richard, ja Lynda Edwards. Teacher's Book Innovations: A Course in Natural English. Thomson, 2007.
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