Lawrence A. Cunningham, Warren E. Buffett (2013). “The Essays of Warren Buffett: Lessons for Corporate America (Third Edition)”, p.63, Carolina Academic Press
"Wendell Potter on “Deadly Spin: An Insurance Company Insider Speaks Out on How Corporate PR is Killing Health Care and Deceiving Americans”". Interview with Amy Goodman, www.democracynow.org. November 16, 2010.