Cita APA (7th ed.)
Ricardo, D. (2001). On the principles of political economy and taxation. Electric Book Co..
Cita Chicago (17th ed.)
Ricardo, David. On the Principles of Political Economy and Taxation. London: Electric Book Co., 2001.
Cita MLA (9th ed.)
Ricardo, David. On the Principles of Political Economy and Taxation. Electric Book Co., 2001.
Atenció: Aquestes cites poden no estar 100% correctes.