Ball, D. A., & McCulloch, W. H. J. (1990). International business: Introduction and essentials (Fourth edition.). BPI/Richard D. Irwin, Inc.
Čikaški stil citiranja (17. izdanje)Ball, Donald A., i Wendell H. Jr McCulloch. International Business: Introduction and Essentials. Fourth edition. Homewood, Illinois: BPI/Richard D. Irwin, Inc, 1990.
MLA način citiranja (9. izdanje)Ball, Donald A., i Wendell H. Jr McCulloch. International Business: Introduction and Essentials. Fourth edition. BPI/Richard D. Irwin, Inc, 1990.
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