Greasley, A. (2013). Operations management (Third edition.). John Wiley & Sons Ltd.
Lua i Stíl Chicago (17ú heag.)Greasley, Andrew. Operations Management. Third edition. Chichester, West Sussex, [England]: John Wiley & Sons Ltd, 2013.
Lua MLA (9ú heag.)Greasley, Andrew. Operations Management. Third edition. John Wiley & Sons Ltd, 2013.
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