Summers, L. H. (1992). Investing in all the people. Office of the Vice President, Development Economics, World Bank.
芝加哥风格引文Summers, Lawrence H. Investing in All the People. Washington, D.C: Office of the Vice President, Development Economics, World Bank, 1992.
MLA引文Summers, Lawrence H. Investing in All the People. Office of the Vice President, Development Economics, World Bank, 1992.
警告：这些引文格式不一定是100％准确.