APA (7th ed.) Zitazioa

Kiplinger's Personal Finance. Future Publishing Ltd.

Chicago Style (17th ed.) Zitazioa

Kiplinger's Personal Finance. Future Publishing Ltd.

MLA (9th ed.) Zitazioa

Kiplinger's Personal Finance. Future Publishing Ltd.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.