APA引文

Paul A Samuelson & William D Nordhaus. (2010). Macroeconomics (19th ed.). Mc-GrawHill Education.

Chicago Edition Citation

Paul A Samuelson and William D Nordhaus. Macroeconomics. 19th ed. NewDelhi: Mc-GrawHill Education, 2010.

MLA引文

Paul A Samuelson and William D Nordhaus. Macroeconomics. 19th ed. Mc-GrawHill Education, 2010.

警告：這些引文格式不一定是100％准確.