BALL, D. A. (1985). International Business Introduction And Essentials Donald A. Ball And Wendel H. Mcculloch. Business Publications.
Lua i Stíl Chicago (17ú heag.)BALL, Donald A. International Business Introduction And Essentials Donald A. Ball And Wendel H. Mcculloch. Business Publications, 1985.
Lua MLA (8ú heag.)BALL, Donald A. International Business Introduction And Essentials Donald A. Ball And Wendel H. Mcculloch. Business Publications, 1985.
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