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Dyfyniad Arddull ChicagoHayek, Friedrich A. von. The Constitution of Liberty. Chicago: Regnery, 1978.
Dyfyniad MLAHayek, Friedrich A. von. The Constitution of Liberty. Regnery, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.