Kotter, J. P. (1996). Leading change (sco.). Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Kotter, John P. Leading Change. sco. San Franci: Jossey-Bass, 1996.
Lua MLA (9ú heag.)Kotter, John P. Leading Change. sco. Jossey-Bass, 1996.
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