APA (7th ed.) Zitazioa

Hyman, D. N. (1992). Economics (2nd ed.). Irwin.

Chicago Style (17th ed.) Zitazioa

Hyman, David N. Economics. 2nd ed. Homewood: Irwin, 1992.

MLA (9th ed.) Zitazioa

Hyman, David N. Economics. 2nd ed. Irwin, 1992.