Krugman, P. R. (2000). The return of depression economics. London: Penguin.
Dyfyniad Arddull ChicagoKrugman, Paul R. The Return of Depression Economics. London: Penguin, 2000.
Dyfyniad MLAKrugman, Paul R. The Return of Depression Economics. London: Penguin, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.