Cita APA (7th ed.)
Hyman, D. N. (1994). Economics (3rd ed.). Irwin.
Cita Chicago (17th ed.)
Hyman, David N. Economics. 3rd ed. Illinois: Irwin, 1994.
Cita MLA (9th ed.)
Hyman, David N. Economics. 3rd ed. Irwin, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.