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Dyfyniad Arddull ChicagoWhite, Douglas John. Decision Methodology: A Formalization of the OR Process. London: John Wiley, 1975.
Dyfyniad MLAWhite, Douglas John. Decision Methodology: A Formalization of the OR Process. John Wiley, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.