DePalma, D. A. (2002). Business Without Borders (is.). QUE.
Lua i Stíl Chicago (17ú heag.)DePalma, Donald A. Business Without Borders. is. Indianapol: QUE, 2002.
Lua MLA (9ú heag.)DePalma, Donald A. Business Without Borders. is. QUE, 2002.
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