Não informado. (1959). International executive. Foundation for the Advancement of International Business Administration.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Executive. New York: Foundation for the Advancement of International Business Administration, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Executive. Foundation for the Advancement of International Business Administration, 1959.
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