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Dyfyniad Arddull ChicagoMack, Ruth. Consumption and Business Fluctuations; a Case Study of the Shoe, Leather, Hide Sequence. New York: National Bureau of Economic Research, 1956.
Dyfyniad MLAMack, Ruth. Consumption and Business Fluctuations; a Case Study of the Shoe, Leather, Hide Sequence. National Bureau of Economic Research, 1956.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.