Gaya APA

Kotter, J, P., Cohe, D, S. (2002). The heart of change : real-life stories of how people change their organizations . : Harvard Business Review Press.

Gaya MLA

Kotter, John, P.., Cohe, Dan, S. "The heart of change : real-life stories of how people change their organizations". : Harvard Business Review Press, 2002. Text.