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Lua i Stíl Chicago (17ú heag.)Schonberger, Richard J. Operations Management: Customer-focused Principles Richard J. Schonberger, Edward M. Knod,jr. Irwin, 1997.
Lua MLA (8ú heag.)Schonberger, Richard J. Operations Management: Customer-focused Principles Richard J. Schonberger, Edward M. Knod,jr. Irwin, 1997.
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