Colander, D. C. (2006). Economics (6th ed.). McGraw-Hill/Irwin.
Chicago Style aipamenaColander, David C. Economics. 6th ed. Boston: McGraw-Hill/Irwin, 2006.
MLA aipamenaColander, David C. Economics. 6th ed. McGraw-Hill/Irwin, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.