APA (7e ed.) Bronvermelding

Friedman, T. L. (2006). The world is flat: The globalized world in the twenty-fist century. Penguin Books.

Chicago (17e ed.) Bronvermelding

Friedman, Thomas L. The World Is Flat: The Globalized World in the Twenty-fist Century. 2006: Penguin Books, 2006.

MLA (9e ed.) Bronvermelding

Friedman, Thomas L. The World Is Flat: The Globalized World in the Twenty-fist Century. Penguin Books, 2006.