Cita APA

Samuelson, W. (1980). Economics (11.). Mc graw Hill.

Chicago Edition Citation

Samuelson, William. Economics. 11. London: Mc graw Hill, 1980.

Cita MLA

Samuelson, William. Economics. 11. Mc graw Hill, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.