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Dyfyniad Arddull ChicagoGass, Saul I. Linear Programming: Methods and Applications. New York: MicGraw-Hill, 1969.
Dyfyniad MLAGass, Saul I. Linear Programming: Methods and Applications. MicGraw-Hill, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.