APA (7th ed.) Citation

Blanchard, K. H., & Miller, M. (2001). The secret: What great leaders know and do. Berret-Koehler Pub.

Chicago Style (17th ed.) Citation

Blanchard, Kenneth H., and Mark Miller. The Secret: What Great Leaders Know and Do. San Francisco: Berret-Koehler Pub, 2001.

MLA (8th ed.) Citation

Blanchard, Kenneth H., and Mark Miller. The Secret: What Great Leaders Know and Do. Berret-Koehler Pub, 2001.