Kotter, J. P. (1999). John P. Kotter on what leaders really do. Boston: Harvard Business School Press.
Chicago Style aipamenaKotter, John P. John P. Kotter On What Leaders Really Do. Boston: Harvard Business School Press, 1999.
MLA aipamenaKotter, John P. John P. Kotter On What Leaders Really Do. Boston: Harvard Business School Press, 1999.
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