McKenzie, R. B. (1986). Economics. Houghton Mifflin.
Cita Chicago (17th ed.)McKenzie, Richard B. Economics. Houghton Mifflin, 1986.
Cita MLA (9th ed.)McKenzie, Richard B. Economics. Houghton Mifflin, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.