APA (7th ed.) Citation

Koch, R. (2007). The 80/20 principle: The secret of achievig more with less (2nd.ed.). Little, Brown and Company.

Chicago Style (17th ed.) Citation

Koch, Richard. The 80/20 Principle: The Secret of Achievig More with Less. 2nd.ed. New York: Little, Brown and Company, 2007.

MLA (8th ed.) Citation

Koch, Richard. The 80/20 Principle: The Secret of Achievig More with Less. 2nd.ed. Little, Brown and Company, 2007.