David, F. R. (1999). Strategic management: Concepts (7th ed.). Upper Saddle River, NJ.: Prentice-Hall.
Παραπομπή Chicago StyleDavid, Fred R. Strategic Management: Concepts. 7th ed. Upper Saddle River, NJ.: Prentice-Hall, 1999.
Παραπομπή MLADavid, Fred R. Strategic Management: Concepts. 7th ed. Upper Saddle River, NJ.: Prentice-Hall, 1999.
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