APA (7th ed.) Citation

Hale, G. A. (1996). The leader's edge: Mastering the five skills of breakthrough thinking. Irwin Professional Pub..

Chicago Style (17th ed.) Citation

Hale, Guy A. The Leader's Edge: Mastering the Five Skills of Breakthrough Thinking. Burr Ridge, Ill.: Irwin Professional Pub., 1996.

MLA (9th ed.) Citation

Hale, Guy A. The Leader's Edge: Mastering the Five Skills of Breakthrough Thinking. Irwin Professional Pub., 1996.