Samuelson, P. A., & Nordhaus, W. D. (2017). Economics (19th ed.). McGraw Hill Education.
芝加哥风格引文Samuelson, Paul A., 与 William D. Nordhaus. Economics. 19th ed. Chennai: McGraw Hill Education, 2017.
MLA引文Samuelson, Paul A., 与 William D. Nordhaus. Economics. 19th ed. McGraw Hill Education, 2017.
警告：这些引文格式不一定是100％准确.