Cita APA (7th ed.)
Hyman, D. N. (1992). Economics (2nd ed.). Irwin.
Cita Chicago (17th ed.)
Hyman, David N. Economics. 2nd ed. Homewood: Irwin, 1992.
Cita MLA (9th ed.)
Hyman, David N. Economics. 2nd ed. Irwin, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.