Cita APA (7a ed.)

Blanchard, K. H., Miller, M., & Adamson, R. (2004). The secret: What great leaders know--and do. HighBridge Co.

Cita Chicago Style (17a ed.)

Blanchard, Kenneth H., Mark Miller, y Rick Adamson. The Secret: What Great Leaders Know--and Do. [Minneapolis, Minn.]: HighBridge Co, 2004.

Cita MLA (9a ed.)

Blanchard, Kenneth H., et al. The Secret: What Great Leaders Know--and Do. HighBridge Co, 2004.