APA (7th ed.) Zitazioa

Daniels, J. D. (1990). International business: Environments and operations (8th ed.). Addison- Wesley.

Chicago Style (17th ed.) Zitazioa

Daniels, John D. International Business: Environments and Operations. 8th ed. New York: Addison- Wesley, 1990.

MLA (9th ed.) Zitazioa

Daniels, John D. International Business: Environments and Operations. 8th ed. Addison- Wesley, 1990.