Cita APA (7th ed.)
Forbes Inc. (1997). Forbes richest people: The Forbes annual profile of the world's wealthiest men and women /. John Wiley & Sons.
Cita Chicago (17th ed.)
Forbes Inc. Forbes Richest People: The Forbes Annual Profile of the World's Wealthiest Men and Women /. New York: John Wiley & Sons, 1997.
Cita MLA (9th ed.)
Forbes Inc. Forbes Richest People: The Forbes Annual Profile of the World's Wealthiest Men and Women /. John Wiley & Sons, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.