world bank. (1994). Trends in developing economies extracts. World Bank.
Cita Chicago (17th ed.)world bank. Trends in Developing Economies Extracts. Washington, DC: World Bank, 1994.
Cita MLA (9th ed.)world bank. Trends in Developing Economies Extracts. World Bank, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.