Jones, L., & Alexander, R. (1999). New international business English: Communication skills in English for business purposes : student's book. H.: Thống kê.
Παραπομπή Chicago StyleJones, Leo, και Richard Alexander. New International Business English: Communication Skills in English for Business Purposes : Student's Book. H.: Thống kê, 1999.
Παραπομπή MLAJones, Leo, και Richard Alexander. New International Business English: Communication Skills in English for Business Purposes : Student's Book. H.: Thống kê, 1999.
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