APA (7th ed.) Zitazioa
Forbes Inc. (1997). Forbes richest people: The Forbes annual profile of the world's wealthiest men and women /. John Wiley & Sons.
Chicago Style (17th ed.) Zitazioa
Forbes Inc. Forbes Richest People: The Forbes Annual Profile of the World's Wealthiest Men and Women /. New York: John Wiley & Sons, 1997.
MLA (9th ed.) Zitazioa
Forbes Inc. Forbes Richest People: The Forbes Annual Profile of the World's Wealthiest Men and Women /. John Wiley & Sons, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.