APA引文
Samuelson, P. A., & Nordhaus, W. D. (2006). Economics (18th ed. ( International ed.).). McGraw-Hill/Irwin.
芝加哥风格引文
Samuelson, Paul A., 与 William D. Nordhaus. Economics. 18th ed. ( International ed.). Boston: McGraw-Hill/Irwin, 2006.
MLA引文
Samuelson, Paul A., 与 William D. Nordhaus. Economics. 18th ed. ( International ed.). McGraw-Hill/Irwin, 2006.
警告：这些引文格式不一定是100％准确.