World Bank. (2013). Measuring the real size of the world's economy: The framework, methodology, and results of the International Comparison Program--ICP. World Bank.
Chicago Style aipamenaWorld Bank. Measuring the Real Size of the World's Economy: The Framework, Methodology, and Results of the International Comparison Program--ICP. Washington, DC: World Bank, 2013.
MLA aipamenaWorld Bank. Measuring the Real Size of the World's Economy: The Framework, Methodology, and Results of the International Comparison Program--ICP. World Bank, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.