APA引文

Samuelson, P. A. (1995). Economics. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Samuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1995.

MLA引文

Samuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1995.

警告：这些引文格式不一定是100％准确.