Knapp, R. (2008). The supernova advisor: Crossing the invisible bridge to exceptional client service and consistent growth. John Wiley & Sons.
Chicago-Zitierstil (17. Ausg.)Knapp, Rob. The Supernova Advisor: Crossing the Invisible Bridge to Exceptional Client Service and Consistent Growth. Hoboken, N.J: John Wiley & Sons, 2008.
MLA-Zitierstil (9. Ausg.)Knapp, Rob. The Supernova Advisor: Crossing the Invisible Bridge to Exceptional Client Service and Consistent Growth. John Wiley & Sons, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.