Kravis, I. B., Heston, A. W., & Summers, R. (1982). World product and income: International comparisons of real gross product. Published for the World Bank [by] the Johns Hopkins University Press.
Dyfyniad Arddull ChicagoKravis, Irving B., Alan W. Heston, and Robert Summers. World Product and Income: International Comparisons of Real Gross Product. Baltimore: Published for the World Bank [by] the Johns Hopkins University Press, 1982.
Dyfyniad MLAKravis, Irving B., et al. World Product and Income: International Comparisons of Real Gross Product. Published for the World Bank [by] the Johns Hopkins University Press, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.