Gaya APA

Cohen, J, P, K, &, D, S. (2002). The heart of change: real life stories of how people change their organizations . Massachusets: Harvard Business Review Press.

Gaya MLA

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