Samuelson, P. A. (2022). Macroeconomics (20th.). McGraw Hill.
芝加哥风格引文Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.
MLA引文Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.
警告：这些引文格式不一定是100％准确.
APA引文
Samuelson, P. A. (2022). Macroeconomics (20th.). McGraw Hill.
芝加哥风格引文Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.
MLA引文Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.