APA引文

Samuelson, P. A. (2017). Economics (19th.). McGraw Hill.

Chicago Style (17th ed.) Citation

Samuelson, Paul A. Economics. 19th. New Delhi: McGraw Hill, 2017.

MLA引文

Samuelson, Paul A. Economics. 19th. McGraw Hill, 2017.

警告：這些引文格式不一定是100％准確.