Colbourn, S., & Doyle, A. C. (2005). The hound of the Baskervilles: Elementary level. London: Macmillan Education.
Παραπομπή Chicago StyleColbourn, Stephen., και Arthur Conan Doyle. The Hound of the Baskervilles: Elementary Level. London: Macmillan Education, 2005.
Παραπομπή MLAColbourn, Stephen., και Arthur Conan Doyle. The Hound of the Baskervilles: Elementary Level. London: Macmillan Education, 2005.
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