Samuelson, P. A., & Nordhaus, W. D. (2018). Economics (19th.). McGraw Hill Education India) Private Limited.
芝加哥风格引文Samuelson, Paul A., 与 William D. Nordhaus. Economics. 19th. New Delhi: McGraw Hill Education India) Private Limited, 2018.
MLA引文Samuelson, Paul A., 与 William D. Nordhaus. Economics. 19th. McGraw Hill Education India) Private Limited, 2018.
警告：这些引文格式不一定是100％准确.