Tohutoro APA (7th ed.)
Czinkota, M. R., Rivoli, P., & Ronkainen, I. A. (1993). International business (3rd ed.). Dryden.
Tohutoru Kātū Chicago (17th ed.)
Czinkota, Michael R., Pietra Rivoli, me Iikka A. Ronkainen. International Business. 3rd ed. San diego: Dryden, 1993.
Tohutoro MLA (9th ed.)
Czinkota, Michael R., et al. International Business. 3rd ed. Dryden, 1993.
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