Kotter, J. P. (1990). A force for change: How leadership differs from management. Free Press ; Collier Macmillan.
Chicago-viite (17. p.)Kotter, John P. A Force for Change: How Leadership Differs from Management. New York : London: Free Press ; Collier Macmillan, 1990.
MLA-viite (8. p.)Kotter, John P. A Force for Change: How Leadership Differs from Management. Free Press ; Collier Macmillan, 1990.
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