APA (7th ed.) Zitazioa
Kumar, V. (2008). Business communication. Kalyani Publishers.
Chicago Style (17th ed.) Zitazioa
Kumar, Varinder. Business Communication. Kolkata: Kalyani Publishers, 2008.
MLA (9th ed.) Zitazioa
Kumar, Varinder. Business Communication. Kalyani Publishers, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.