Axtell, R. E. (2007). Essential do's and taboos: The complete guide to international business and leisure travel. New Jersey: John Wiley & Sons, Inc.
Παραπομπή Chicago StyleAxtell, Roger E. Essential Do's and Taboos: The Complete Guide to International Business and Leisure Travel. New Jersey: John Wiley & Sons, Inc, 2007.
Παραπομπή MLAAxtell, Roger E. Essential Do's and Taboos: The Complete Guide to International Business and Leisure Travel. New Jersey: John Wiley & Sons, Inc, 2007.
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