Clifton, J., & Harter, J. K. (2019). It's the manager: Gallup finds the quality of managers and team leaders is the single biggest factor in your organization's long-term success. Gallup Press.
Chicago Style (17th ed.) CitationClifton, Jim, and James K. Harter. It's the Manager: Gallup Finds the Quality of Managers and Team Leaders Is the Single Biggest Factor in Your Organization's Long-term Success. New York, NY: Gallup Press, 2019.
MLA (9th ed.) CitationClifton, Jim, and James K. Harter. It's the Manager: Gallup Finds the Quality of Managers and Team Leaders Is the Single Biggest Factor in Your Organization's Long-term Success. Gallup Press, 2019.
Warning: These citations may not always be 100% accurate.