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Dyfyniad Arddull ChicagoFabricant, Solomon. Recent Economic Changes and the Agenda of Business-cycle Research. New York: National Bureau of Economic Research, 1971.
Dyfyniad MLAFabricant, Solomon. Recent Economic Changes and the Agenda of Business-cycle Research. National Bureau of Economic Research, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.