Samuelson,Paul A, & Nordhaus, W. D. (2020). Economics (20th Edition.). Tata McGraw Hill.
Chicago Style (17th ed.) CitationSamuelson,Paul A, and William D. Nordhaus. Economics. 20th Edition. Chennai: Tata McGraw Hill, 2020.
MLA引文Samuelson,Paul A, and William D. Nordhaus. Economics. 20th Edition. Tata McGraw Hill, 2020.
警告:這些引文格式不一定是100%准確.