Sawaya, W. J. (1986). Production and operations management. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)Sawaya, William J. Production and Operations Management. Harcourt Brace Jovanovich, 1986.
Lua MLA (9ú heag.)Sawaya, William J. Production and Operations Management. Harcourt Brace Jovanovich, 1986.
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