Blanchard, K. H., & Miller, M. 1. (2009). The secret: What great leaders know and do (Third Edition.). Berrett-Koehler Publishers.
Chicago Style (17th ed.) CitationBlanchard, Kenneth H., and Mark( 1959-) Miller. The Secret: What Great Leaders Know and Do. Third Edition. San Francisco: Berrett-Koehler Publishers, 2009.
MLA (8th ed.) CitationBlanchard, Kenneth H., and Mark( 1959-) Miller. The Secret: What Great Leaders Know and Do. Third Edition. Berrett-Koehler Publishers, 2009.
Warning: These citations may not always be 100% accurate.