APA (7th ed.) Zitazioa
(2004). Building Your Business Pocketbook. Thorogood Publishing Ltd.
Chicago Style (17th ed.) Zitazioa
Building Your Business Pocketbook. Thorogood Publishing Ltd, 2004.
MLA (9th ed.) Zitazioa
Building Your Business Pocketbook. Thorogood Publishing Ltd, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.