APA引文

Samuelson, P. A. (2005). Economics (7th omson.). Thomson.

芝加哥风格引文

Samuelson, Paul A. Economics. 7th omson. South- Western/Th Learning: Thomson, 2005.

MLA引文

Samuelson, Paul A. Economics. 7th omson. Thomson, 2005.

警告：这些引文格式不一定是100％准确.