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Lua i Stíl Chicago (17ú heag.)Hill, Charles W. Strategic Management An Integrated Aproach Charles W.l Hill, Gareth R. Jones. Hougthon Mifflin, 1998.
Lua MLA (8ú heag.)Hill, Charles W. Strategic Management An Integrated Aproach Charles W.l Hill, Gareth R. Jones. Hougthon Mifflin, 1998.
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