David, F. R. (2002). Strategic management: Cases (9th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)David, Fred R. Strategic Management: Cases. 9th ed. Upper Saddle River, N.J: Prentice-Hall, 2002.
Lua MLA (9ú heag.)David, Fred R. Strategic Management: Cases. 9th ed. Prentice-Hall, 2002.
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