Toporek, A. (2015). Be your customer's hero: Real-world tips & techniques for the service front lines. AMACOM American Management Association.
Chicago-Zitierstil (17. Ausg.)Toporek, Adam. Be Your Customer's Hero: Real-world Tips & Techniques for the Service Front Lines. New York: AMACOM American Management Association, 2015.
MLA-Zitierstil (9. Ausg.)Toporek, Adam. Be Your Customer's Hero: Real-world Tips & Techniques for the Service Front Lines. AMACOM American Management Association, 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.