Watkins, M. (2003). The first 90 days: Critical success strategies for new leaders at all levels. Harvard Business School.
Citace podle Chicago (17th ed.)Watkins, Michael. The First 90 Days: Critical Success Strategies for New Leaders at All Levels. Boston: Harvard Business School, 2003.
Citace podle MLA (9th ed.)Watkins, Michael. The First 90 Days: Critical Success Strategies for New Leaders at All Levels. Harvard Business School, 2003.
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