Friedman, T. (2002). Edition for Parkett: Tom Friedman : "Ohne Titel" 2002. Parkett.
Cita Chicago (17th ed.)Friedman, Tom. "Edition for Parkett: Tom Friedman : "Ohne Titel" 2002." Parkett 2002.
Cita MLA (8th ed.)Friedman, Tom. "Edition for Parkett: Tom Friedman : "Ohne Titel" 2002." Parkett, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.