Samuelson, P. A., & Nordhaus, W. D. (2018). Economics (19th.). McGraw Hill Education India) Private Limited.
Chicago Style (17th ed.) CitationSamuelson, Paul A., and William D. Nordhaus. Economics. 19th. New Delhi: McGraw Hill Education India) Private Limited, 2018.
MLA引文Samuelson, Paul A., and William D. Nordhaus. Economics. 19th. McGraw Hill Education India) Private Limited, 2018.
警告:這些引文格式不一定是100%准確.