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Dyfyniad Arddull ChicagoMONKS JOSEPH G. OPERATIONS MANAGEMENT: THEORY AND PROBLEMS. NEW YORK: MCGRAW-HILL, 1987.
Dyfyniad MLAMONKS JOSEPH G. OPERATIONS MANAGEMENT: THEORY AND PROBLEMS. MCGRAW-HILL, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.