APA Style
World's richest men. (2009).
Jakarta:
Videounggul.
Chicago Style
World's richest men.
.
Jakarta:
Videounggul,
2009.
.
MLA Style
World's richest men.
.
Jakarta:
Videounggul,
2009.
.
Turabian Style
World's richest men.
Jakarta:
Videounggul,
2009.
.