APA (7th ed.) Citation

Wagner, R., & Muller. (2009). Power of 2: How to make the most of your partnerships at work and in life. Gallup Press.

Chicago Style (17th ed.) Citation

Wagner, Rodd, and Muller. Power of 2: How to Make the Most of Your Partnerships at Work and in Life. New York: Gallup Press, 2009.

MLA (8th ed.) Citation

Wagner, Rodd, and Muller. Power of 2: How to Make the Most of Your Partnerships at Work and in Life. Gallup Press, 2009.