APA引文

Pugel, T. A. (2008). International Economics (13th.). McGraw Hill Education.

芝加哥风格引文

Pugel, Thomas A. International Economics. 13th. New Delhi: McGraw Hill Education, 2008.

MLA引文

Pugel, Thomas A. International Economics. 13th. McGraw Hill Education, 2008.

警告：这些引文格式不一定是100％准确.