Jones L. Leo & Alexander R. Richard. (2003). New International Business English. Communication skills in English for business purposes: Student's Book. New York, Cambridge University Press, 2003.
Παραπομπή σε μορφή Chicago (17η εκδ.)Jones L. Leo και Alexander R. Richard. New International Business English. Communication Skills in English for Business Purposes: Student's Book. New York, Cambridge University Press, 2003, 2003.
Παραπομπή σε μορφή MLA (9th εκδ.)Jones L. Leo και Alexander R. Richard. New International Business English. Communication Skills in English for Business Purposes: Student's Book. New York, Cambridge University Press, 2003, 2003.
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