Hyman, D. N. (1989). Economics. Boston: Irwin.
Chicago Style aipamenaHyman, David N. Economics. Boston: Irwin, 1989.
MLA aipamenaHyman, David N. Economics. Boston: Irwin, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Hyman, D. N. (1989). Economics. Boston: Irwin.
Chicago Style aipamenaHyman, David N. Economics. Boston: Irwin, 1989.
MLA aipamenaHyman, David N. Economics. Boston: Irwin, 1989.