Friedman, T. L. (2017). Summary: The World Is Flat : review & analysis of Thomas L. Friedman's Book. Primento Political Book Summaries.
Chicago-Zitierstil (17. Ausg.)Friedman, Thomas L. Summary: The World Is Flat : Review & Analysis of Thomas L. Friedman's Book. [Place of publication not identified]: Primento Political Book Summaries, 2017.
MLA-Zitierstil (9. Ausg.)Friedman, Thomas L. Summary: The World Is Flat : Review & Analysis of Thomas L. Friedman's Book. Primento Political Book Summaries, 2017.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.