Lampman, R. J. (1960). Changes in the share of wealth held by top wealth-holders, 1922-1956. National Bureau of Economic Research.
Dyfyniad Arddull ChicagoLampman, Robert J. Changes in the Share of Wealth Held by Top Wealth-holders, 1922-1956. New York: National Bureau of Economic Research, 1960.
Dyfyniad MLALampman, Robert J. Changes in the Share of Wealth Held by Top Wealth-holders, 1922-1956. National Bureau of Economic Research, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.