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Dyfyniad Arddull ChicagoKlir, George J. Architecute of Systems Problem Solving. New York: Plenum, 1985.
Dyfyniad MLAKlir, George J. Architecute of Systems Problem Solving. Plenum, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.