APA (7th ed.) Zitazioa

NBER Reporter. National Bureau of Economic Research, Inc.

Chicago Style (17th ed.) Zitazioa

NBER Reporter. National Bureau of Economic Research, Inc.

MLA (9th ed.) Zitazioa

NBER Reporter. National Bureau of Economic Research, Inc.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.