Daniels, J. D. (1990). International business: Environments and operations (8th ed.). Addison- Wesley.
Cita Chicago (17th ed.)Daniels, John D. International Business: Environments and Operations. 8th ed. New York: Addison- Wesley, 1990.
Cita MLA (9th ed.)Daniels, John D. International Business: Environments and Operations. 8th ed. Addison- Wesley, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.