APA (7th ed.) Citation

Gladwell, M. (2000). The tipping point: How little things can make a big difference. Little, Brown.

Chicago Style (17th ed.) Citation

Gladwell, Malcolm. The Tipping Point: How Little Things Can Make a Big Difference. Boston: Little, Brown, 2000.

MLA (9th ed.) Citation

Gladwell, Malcolm. The Tipping Point: How Little Things Can Make a Big Difference. Little, Brown, 2000.