Cita APA

Samuelson, P. A. (1989). Economics. New York: McGraw-Hill.

Chicago Style Citation

Samuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1989.

Cita MLA

Samuelson, Paul Anthony. Economics. New York: McGraw-Hill, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.