Gaya APA

KOTTER, J, P., COHEN, D, S. (2002). The Heart of Change : Real-Life Stories of How People Change Their Organizations . USA: Harvard Business Review Press.

Gaya MLA

KOTTER, John, P., COHEN, Dan, S. "The Heart of Change : Real-Life Stories of How People Change Their Organizations". USA: Harvard Business Review Press, 2002. Text.