Gaya APA

Kotter, J, P., Cohen, D, S. (2002). The Heart of Change: Real-Life Stories of How People Change Their Organizations (1). England: Harvard bussines Reiew Pres.

Gaya MLA

Kotter, John, P., Cohen, Dan, S. "The Heart of Change: Real-Life Stories of How People Change Their Organizations". 1 England: Harvard bussines Reiew Pres, 2002. Text.