Gilder, G. (2012). Wealth and Poverty. Partridge.
Dyfyniad Arddull ChicagoGilder, George. Wealth and Poverty. Delhi: Partridge, 2012.
Dyfyniad MLAGilder, George. Wealth and Poverty. Partridge, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.