Fulmer, R. M., & Goldsmith, M. (2001). The leadership investment: How the world's best organizations gain strategic advantage through leadership development. AMACOM.

Fulmer, Robert M., and Marshall Goldsmith. The Leadership Investment: How the World's Best Organizations Gain Strategic Advantage Through Leadership Development. New York: AMACOM, 2001.

Fulmer, Robert M., and Marshall Goldsmith. The Leadership Investment: How the World's Best Organizations Gain Strategic Advantage Through Leadership Development. AMACOM, 2001.