APA (7th ed.) Citation

Ridley, M. (2011). The rational optimist: How prosperity evolves (First Harper Perennial edition.). Harper Perennial.

Chicago Style (17th ed.) Citation

Ridley, Matt. The Rational Optimist: How Prosperity Evolves. First Harper Perennial edition. New York: Harper Perennial, 2011.

MLA (9th ed.) Citation

Ridley, Matt. The Rational Optimist: How Prosperity Evolves. First Harper Perennial edition. Harper Perennial, 2011.

Warning: These citations may not always be 100% accurate.