Gaya APA

Kotter, John P., COHEN, Dan S.. (2002). The Heart of Change . United States of America: Hardvard business school press.

Gaya Chicago

Kotter, John P., COHEN, Dan S.. The Heart of Change. United States of America: Hardvard business school press, 2002. Text.

Gaya MLA

Kotter, John P., COHEN, Dan S.. The Heart of Change. United States of America: Hardvard business school press, 2002. Text.

Gaya Turabian

Kotter, John P., COHEN, Dan S.. The Heart of Change. United States of America: Hardvard business school press, 2002. Print.