BALLOU, R. H. (2004). Business logistics/supply chain management. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)BALLOU, Ronald H. Business Logistics/supply Chain Management. Prentice Hall, 2004.
Lua MLA (8ú heag.)BALLOU, Ronald H. Business Logistics/supply Chain Management. Prentice Hall, 2004.
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