HEIZER, J. (2005). Operations management flexible version [ada CD]. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)HEIZER, Jay. Operations Management Flexible Version [ada CD]. Prentice Hall, 2005.
Lua MLA (8ú heag.)HEIZER, Jay. Operations Management Flexible Version [ada CD]. Prentice Hall, 2005.
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