Underhill, B. O. (2008). Executive coaching for results: The definitive guide to developing organizational leaders. Berrett-Koehler Publishers.
Chicago-Zitierstil (17. Ausg.)Underhill, Brian O. Executive Coaching for Results: The Definitive Guide to Developing Organizational Leaders. San Francisco: Berrett-Koehler Publishers, 2008.
MLA-Zitierstil (9. Ausg.)Underhill, Brian O. Executive Coaching for Results: The Definitive Guide to Developing Organizational Leaders. Berrett-Koehler Publishers, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.