Gladwell Malcolm. (2010). Tipping Point: How Little thing can Make a Big Difference. Little Brown.
Cita Chicago (17th ed.)Gladwell Malcolm. Tipping Point: How Little Thing Can Make a Big Difference. Little Brown, 2010.
Cita MLA (9th ed.)Gladwell Malcolm. Tipping Point: How Little Thing Can Make a Big Difference. Little Brown, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.