Cita APA (7th ed.)

Kotter, J. P. C. (2002). Heart of Change. Harvard Bus. School.

Cita Chicago (17th ed.)

Kotter, John P; Cohen. Heart of Change. Boston: Harvard Bus. School, 2002.

Cita MLA (9th ed.)

Kotter, John P; Cohen. Heart of Change. Harvard Bus. School, 2002.