Robock, S. H. (1977). International Business And Multinational Enterprises Stefan H. Robock. Richard D. Irwin.
Lua i Stíl Chicago (17ú heag.)Robock, Stefan H. International Business And Multinational Enterprises Stefan H. Robock. Richard D. Irwin, 1977.
Lua MLA (8ú heag.)Robock, Stefan H. International Business And Multinational Enterprises Stefan H. Robock. Richard D. Irwin, 1977.
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