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Lua i Stíl Chicago (17ú heag.)Gerstner, Louis V. Who Says Elephants Can't Dance?: Inside IBM's Historic Turnaround. New York: HarperBusiness, 2002.
Lua MLA (8ú heag.)Gerstner, Louis V. Who Says Elephants Can't Dance?: Inside IBM's Historic Turnaround. HarperBusiness, 2002.
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