APA引文

Willis, J. F. 1., & Fabritius,M.Manfred. (2005). Explorations in macroeconomics (7th ed.). CAT Publishing Co.

芝加哥风格引文

Willis, James Frederick 1932, 与 Fabritius,M.Manfred. Explorations in Macroeconomics. 7th ed. Redding, Calif.: CAT Publishing Co, 2005.

MLA引文

Willis, James Frederick 1932, 与 Fabritius,M.Manfred. Explorations in Macroeconomics. 7th ed. CAT Publishing Co, 2005.

警告：这些引文格式不一定是100％准确.