APA Style

Kotter, J, P., Cohen, D, S. (2012). The Heart of Change : Real-life Stories of How People Change Their Organizations . United States of america: Harvard business school press.

MLA Style

Kotter, John, P.., Cohen, Dan, S.. "The Heart of Change : Real-life Stories of How People Change Their Organizations". United States of america: Harvard business school press, 2012. Text.