Yeats, A. J. (1994). What are OECD trade preferences worth to Sub-Saharan Africa? World Bank, International Economics Department, International Trade Division.
芝加哥风格引文Yeats, Alexander J. What Are OECD Trade Preferences Worth to Sub-Saharan Africa? Washington, D.C: World Bank, International Economics Department, International Trade Division, 1994.
MLA引文Yeats, Alexander J. What Are OECD Trade Preferences Worth to Sub-Saharan Africa? World Bank, International Economics Department, International Trade Division, 1994.
警告：这些引文格式不一定是100％准确.