Gwartney, J. D. (2009). Economics: Private and public choice (12th ed., macro-first version.). South-Western Cengage Learning.
Cita Chicago (17th ed.)Gwartney, James D. Economics: Private and Public Choice. 12th ed., macro-first version. Mason, OH: South-Western Cengage Learning, 2009.
Cita MLA (9th ed.)Gwartney, James D. Economics: Private and Public Choice. 12th ed., macro-first version. South-Western Cengage Learning, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.