Gaya APA
Friedman, Thomas L.. (2005).
The World is flat : a brief history of the twenty-first century .
New York:
Farrar Straus and Giroux.
Gaya Chicago
Friedman, Thomas L..
The World is flat : a brief history of the twenty-first century.
New York:
Farrar Straus and Giroux,
2005.
Text.
Gaya MLA
Friedman, Thomas L..
The World is flat : a brief history of the twenty-first century.
New York:
Farrar Straus and Giroux,
2005.
Text.
Gaya Turabian
Friedman, Thomas L..
The World is flat : a brief history of the twenty-first century.
New York:
Farrar Straus and Giroux,
2005.
Print.