APA (7th ed.) Zitazioa

The Quarterly Journal of Economics. President and Fellows of Harvard College.

Chicago Style (17th ed.) Zitazioa

The Quarterly Journal of Economics. President and Fellows of Harvard College.

MLA (9th ed.) Zitazioa

The Quarterly Journal of Economics. President and Fellows of Harvard College.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.