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Dyfyniad Arddull ChicagoGass, Saul I. Linear Programming.-4th Ed.: Methods and Applications. 4th ed. New York: McGraw-Hill, 1975.
Dyfyniad MLAGass, Saul I. Linear Programming.-4th Ed.: Methods and Applications. 4th ed. McGraw-Hill, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.