Frank, I. (1979). The "Graduation" issue in trade policy toward LDCs. World Bank.
Cita Chicago (17th ed.)Frank, Isaiah. The "Graduation" Issue in Trade Policy Toward LDCs. Washington, D.C: World Bank, 1979.
Cita MLA (9th ed.)Frank, Isaiah. The "Graduation" Issue in Trade Policy Toward LDCs. World Bank, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.