Reichheld, F. F. (1996). The loyalty effect: The hidden force behind growth, profits, and lasting value. Bain.
Citazione stile Chigago Style (17a edizione)Reichheld, Frederick F. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Boston: Bain, 1996.
Citatione MLA (9a ed.)Reichheld, Frederick F. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Bain, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.