APA-referens (7:e uppl.)
Kets de Vries, M. F. R. (2011). The hedgehog effect: Executive coaching and the secrets of building high performance teams. Jossey-Bass.
Chicago-referens (17:e uppl.)
Kets de Vries, Manfred F. R. The Hedgehog Effect: Executive Coaching and the Secrets of Building High Performance Teams. San Francisco, Calif.: Jossey-Bass, 2011.
MLA-referens (9:e uppl.)
Kets de Vries, Manfred F. R. The Hedgehog Effect: Executive Coaching and the Secrets of Building High Performance Teams. Jossey-Bass, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.