Cita APA (7th ed.)

Blanchard, K. H., & Miller, M. (2007). The secret: What great leaders know-and do. Berrett-Koehler Publishers.

Cita Chicago (17th ed.)

Blanchard, Kenneth H., i Mark Miller. The Secret: What Great Leaders Know-and Do. San Francisco: Berrett-Koehler Publishers, 2007.

Cita MLA (8th ed.)

Blanchard, Kenneth H., i Mark Miller. The Secret: What Great Leaders Know-and Do. Berrett-Koehler Publishers, 2007.