Mason, R. H., Miller, R. R., & Weigel, D. R. (1981). International business (2nd ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Mason, R. Hal, Robert R. Miller, agus Dale R. Weigel. International Business. 2nd ed. New York: Wiley, 1981.
Lua MLA (9ú heag.)Mason, R. Hal, et al. International Business. 2nd ed. Wiley, 1981.
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