BIEGEL, J. E. (1990). Production Control A Quantitative Applied John E Biegel. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)BIEGEL, John E. Production Control A Quantitative Applied John E Biegel. Prentice Hall, 1990.
Lua MLA (8ú heag.)BIEGEL, John E. Production Control A Quantitative Applied John E Biegel. Prentice Hall, 1990.
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