Jones, L., & Alexander, R. (1990). International Business English: A course in communication skills. New York: Cambridge University Press.
Παραπομπή Chicago StyleJones, Leo., και Richard Alexander. International Business English: A Course in Communication Skills. New York: Cambridge University Press, 1990.
Παραπομπή MLAJones, Leo., και Richard Alexander. International Business English: A Course in Communication Skills. New York: Cambridge University Press, 1990.
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