(1843). Economist. Economist Newspaper.
Dyfyniad Arddull ChicagoEconomist. London: Economist Newspaper, 1843.
Dyfyniad MLAEconomist. Economist Newspaper, 1843.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
(1843). Economist. Economist Newspaper.
Dyfyniad Arddull ChicagoEconomist. London: Economist Newspaper, 1843.
Dyfyniad MLAEconomist. Economist Newspaper, 1843.