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Dyfyniad Arddull ChicagoHansen, Lars Peter, and Thomas J. Sargent. Robustness. Princeton, N.J: Princeton University Press, 2008.
Dyfyniad MLAHansen, Lars Peter, and Thomas J. Sargent. Robustness. Princeton University Press, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.