Alexander, L. (1974). Developing Skills: New Concept English. Paris: Hermes*.
Trích dẫn kiểu ChicagoAlexander, L.g. Developing Skills: New Concept English. Paris: Hermes*, 1974.
Deismireacht MLAAlexander, L.g. Developing Skills: New Concept English. Paris: Hermes*, 1974.
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