Kravis, I. B., & Lipsey, R. E. (1966). Comparative prices of nonferrous metals in international trade, 1953-64. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Kravis, Irving B., e Robert E. Lipsey. Comparative Prices of Nonferrous Metals in International Trade, 1953-64. New York: National Bureau of Economic Research, 1966.
Citatione MLA (9a ed.)Kravis, Irving B., e Robert E. Lipsey. Comparative Prices of Nonferrous Metals in International Trade, 1953-64. National Bureau of Economic Research, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.